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A126456
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Column 1 of triangle A126454; a(n) = C( C(n+3,3) + 1, n).
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5
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1, 5, 55, 1330, 58905, 4187106, 437353560, 63140314380, 12049276177620, 2938311614386005, 891655291709643461, 329600203128234828790, 145830232567505064233200, 76102715775896720790887700
(list; graph; refs; listen; history; internal format)
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