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A108076
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Triangle in A071946 with rows reversed.
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1
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1, 1, 1, 2, 2, 1, 6, 6, 4, 1, 19, 19, 13, 6, 1, 63, 63, 44, 23, 8, 1, 219, 219, 156, 87, 37, 10, 1, 787, 787, 568, 330, 155, 55, 12, 1, 2897, 2897, 2110, 1260, 629, 255, 77, 14, 1, 10869, 10869, 7972, 4856, 2527, 1111, 395, 103, 16, 1, 41414, 41414, 30545, 18889
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 0,4
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FORMULA
| a(n, k) = A071946(n, n-k-1). - David Wasserman (dwasserm(AT)earthlink.net), May 07 2008
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EXAMPLE
| 1; 1,1; 2,2,1; 6,6,4,1; 19,19,13,6,1; ...
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CROSSREFS
| Sequence in context: A094587 A135878 A121284 * A104557 A141712 A098539
Adjacent sequences: A108073 A108074 A108075 * A108077 A108078 A108079
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KEYWORD
| nonn,tabl,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Jun 05 2005
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EXTENSIONS
| More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 13 2007
More terms from David Wasserman (dwasserm(AT)earthlink.net), May 07 2008
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