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Search: id:A108076
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A108076 Triangle in A071946 with rows reversed. +0
2
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; listen)
OFFSET

0,4

FORMULA

a(n, k) = A071946(n, n-k-1). - David Wasserman (dwasserm(AT)earthlink.net), May 07 2008

EXAMPLE

1; 1,1; 2,2,1; 6,6,4,1; 19,19,13,6,1; ...

CROSSREFS

Sequence in context: A094587 A135878 A121284 this_sequence A104557 A141712 A098539

Adjacent sequences: A108073 A108074 A108075 this_sequence A108077 A108078 A108079

KEYWORD

nonn,tabl,easy

AUTHOR

njas, Jun 05 2005

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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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.


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