A374868 - OEIS

A374868

Obverse convolution (2n+1)**A000032; see Comments.

3, 10, 112, 1620, 39424, 1404000, 75841920, 6112753920, 742328893440, 136268470800000, 38081363493888000, 16296693648238080000, 10743612584546575319040, 10968661020433308192000000, 17425075496868344523423744000, 43253347261338355732569538560000

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OFFSET

0,1

COMMENTS

See A374848 for the definition of obverse convolution and a guide to related sequences.

LINKS

Table of n, a(n) for n=0..15.

MATHEMATICA

s[n_] := 2 n + 1; t[n_] := LucasL[n];

u[n_] := Product[s[k] + t[n - k], {k, 0, n}]

Table[u[n], {n, 0, 20}]

CROSSREFS

Cf. A005408, A000032, A374848.

Sequence in context: A073306 A290557 A034945 * A132480 A201694 A336210

Adjacent sequences: A374865 A374866 A374867 * A374869 A374871 A374872

KEYWORD

nonn

AUTHOR

Clark Kimberling, Aug 28 2024

STATUS

approved