WebOther articles where oblong number is discussed: number game: Polygonal and other figurate numbers: Oblong numbers are the numbers of dots that can be placed in rows and columns in a rectangular array, each row containing one more dot than each column. The first few oblong numbers are 2, 6, 12, 20, and 30. This series of numbers is… WebThe smallest of two integers for which is four times a triangular number is 5, as determined by Cesàro in 1886 (Le Lionnais 1983, p. 56). The only Fibonacci numbers which are triangular are 1, 3, 21, and 55 (Ming 1989), and the only Pell number which is triangular is 1 (McDaniel 1996). The beast number 666 is triangular, since.
Classifications of figurate numbers - OeisWiki - On-Line …
Web24 mrt. 2024 · Tetrahedral numbers are pyramidal numbers with , and are the sum of consecutive triangular numbers. The first few are 1, 4, 10, 20, 35, 56, 84, 120, ... (OEIS A000292 ). The generating function for the … Web13 sep. 2024 · All figurate numbers are fully classified on the page: Classifications of figurate numbers. Contents 1 Two-dimensional figurate numbers 1.1 Polygonal … improve photography lightroom presets
List of integer sequences - Wikipedia
WebFigurate Numbers. The name for geometric sequences is pretty confusing, because they don’t have anything to do with geometry. In fact, the name was developed hundreds of … WebSee Also 1 st Hundred Triangular Numbers. 1 st Hundred Pentagonal Numbers. 1 st Hundred Hexagonal Numbers. 1 st Hundred Heptagonal Numbers. 1 st Hundred Octogonal Numbers. 1 st Hundred Lazy Caterers Sequence Numbers. 1 st Hundred Magic Square Numbers. 1 st Hundred Catalan Numbers. 1 st Hundred Look and say sequence … Figurate numbers were a concern of the Pythagorean worldview. It was well understood that some numbers could have many figurations, e.g. 36 is a both a square and a triangle and also various rectangles. The modern study of figurate numbers goes back to Pierre de Fermat, specifically the … Meer weergeven The term figurate number is used by different writers for members of different sets of numbers, generalizing from triangular numbers to different shapes (polygonal numbers) and different dimensions … Meer weergeven The gnomon is the piece added to a figurate number to transform it to the next larger one. For example, the gnomon of the square number is the Meer weergeven Some kinds of figurate number were discussed in the 16th and 17th centuries under the name "figural number". In historical … Meer weergeven The mathematical study of figurate numbers is said to have originated with Pythagoras, possibly based on Babylonian or Egyptian precursors. Generating whichever … Meer weergeven lithium 7 abundance