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 A208891 Pascal's triangle matrix augmented with a right border of 1's. 1
 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 3, 3, 1, 1, 1, 4, 6, 4, 1, 1, 1, 5, 10, 10, 5, 1, 1, 1, 6, 15, 20, 15, 6, 1, 1, 1, 7, 21, 35, 35, 21, 7, 1, 1, 1, 8, 28, 56, 70, 56, 28, 8, 1, 1, 1, 9, 36, 84, 126, 126, 84, 36, 9, 1, 1, 1, 10, 45, 120, 210, 252, 210, 120, 45 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,8 COMMENTS The eigensequence of this triangle starts as 1, 2, 4, 9, 23, 65,... (cf. A007476). The flattened sequence differs from A135225 only by an additional leading 1. LINKS Table of n, a(n) for n=0..74. FORMULA T(n,n)=1. T(n,k) = A007318(n-1,k) for k

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Last modified May 24 12:09 EDT 2024. Contains 372773 sequences. (Running on oeis4.)