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 A143969 Eigentriangle by rows, n terms of (5 * A084057) followed by A084057(n). 1
 1, 5, 1, 5, 5, 6, 5, 5, 30, 16, 5, 5, 30, 80, 56, 5, 5, 30, 80, 280, 176, 5, 5, 30, 80, 280, 880, 1856, 5, 5, 30, 80, 280, 880, 9280, 6016, 5, 5, 30, 80, 280, 880, 9280, 30080, 19456 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Right border = A084057: (1, 1, 6, 16, 56, 176,...). Row sums = (1, 6, 16, 56,...) = INVERT transform of (1, 5, 5, 5,...). Sum of n-th row terms = rightmost term of next row. LINKS Table of n, a(n) for n=0..44. FORMULA Eigentriangle by rows, n terms of (5 * A084057) followed by A084057(n). EXAMPLE First few rows of the triangle = 1; 5, 1; 5, 5, 6; 5, 5, 30, 16; 5, 5, 30, 80, 56; 5, 5, 30, 80, 280, 176; 5, 5, 30, 80, 280, 880, 1856; ... CROSSREFS A084057 Sequence in context: A021198 A275976 A306577 * A198366 A162797 A087232 Adjacent sequences: A143966 A143967 A143968 * A143970 A143971 A143972 KEYWORD nonn,tabl AUTHOR Gary W. Adamson, Sep 06 2008 STATUS approved

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Last modified September 11 17:54 EDT 2024. Contains 375839 sequences. (Running on oeis4.)