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Search: id:A111304
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| A111304 |
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Even numbers of the form floor( binomial(2k, 2j)/binomial(k, j)). |
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+0
2
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| 46, 452, 1618, 2476, 2926, 3944, 5628, 7628, 7830, 10130, 11688, 13676, 21190, 21882, 22598, 24228, 32848, 40654, 46974, 64660, 71574, 72310, 86306, 90660, 94222, 112312, 119290, 143078, 153884, 167006, 179004, 186654, 193342, 220490
(list; graph; listen)
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OFFSET
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1,1
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MATHEMATICA
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Take[ Select[ Union[ Flatten[ Table[ Floor[ Binomial[2n, 2k]/Binomial[n, k]], {n, 0, 76}, {k, 0, n}]]], EvenQ[ # ] &], 34]
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CROSSREFS
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Cf. even terms of A113245.
Sequence in context: A077734 A135735 A160285 this_sequence A055751 A156892 A027940
Adjacent sequences: A111301 A111302 A111303 this_sequence A111305 A111306 A111307
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KEYWORD
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nonn
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AUTHOR
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Paul Barry (pbarry(AT)wit.ie) and Robert G. Wilson v (rgwv(AT)rgwv.com), Oct 21 2005
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