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A346937 a(n) = Sum_{d|n} mu(n/d) * binomial(6*d,d) / (5*d+1). 4
1, 5, 50, 500, 5480, 62776, 749397, 9203128, 115607259, 1478308780, 19180049927, 251857056364, 3340843549854, 44700484300317, 602574657421585, 8175951649914160, 111572030260242089, 1530312970224714489, 21085148778264281864, 291705220703240850760, 4050527291832419432577 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Moebius transform of A002295.

LINKS

Table of n, a(n) for n=1..21.

MATHEMATICA

Table[Sum[MoebiusMu[n/d] Binomial[6 d, d]/(5 d + 1), {d, Divisors[n]}], {n, 21}]

CROSSREFS

Cf. A002295, A002996, A008683, A346925, A346935, A346936, A346938, A346939.

Sequence in context: A136910 A267663 A093143 * A077330 A113330 A079157

Adjacent sequences:  A346934 A346935 A346936 * A346938 A346939 A346940

KEYWORD

nonn

AUTHOR

Ilya Gutkovskiy, Aug 08 2021

STATUS

approved

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Last modified December 5 12:24 EST 2021. Contains 349557 sequences. (Running on oeis4.)