A374850 - OEIS

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A374850

Obverse convolution A000032**A000032; see Comments.

4, 9, 50, 576, 12150, 529984, 46080000, 8227578436, 3001814235000, 2250930099585024, 3467943896484375000, 10990843331383915704576, 71660705425234329600000000, 961449528856034873335986864784, 26545636210087637565464331562500000

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OFFSET

0,1

COMMENTS

See A374848 for the definition of obverse convolution and a guide to related sequences. a(2k+1) is a square for k>=0.

LINKS

Table of n, a(n) for n=0..14.

MATHEMATICA

s[n_] := LucasL[n]; t[n_] := LucasL[n];

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

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

CROSSREFS

Cf. A000045, A374848.

Sequence in context: A053943 A053955 A038340 * A016489 A030694 A060998

Adjacent sequences: A374847 A374848 A374849 * A374851 A374852 A374853

KEYWORD

nonn

AUTHOR

Clark Kimberling, Aug 05 2024

STATUS

approved