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A374861
Obverse convolution (n)**A000201; see Comments.
1
0, 1, 12, 144, 2400, 50400, 1143072, 31046400, 903260160, 30356726400, 1154305152000, 46189964620800, 2053748448460800, 100323076215398400, 5103635783178240000, 282151131740577792000, 16183501766885376000000, 999942682759884864000000
OFFSET
0,3
COMMENTS
See A374848 for the definition of obverse convolution and a guide to related sequences.
MATHEMATICA
r = GoldenRatio;
s[n_] := n; t[n_] := Floor[n*r];
u[n_] := Product[s[k] + t[n - k], {k, 0, n}]
Table[u[n], {n, 0, 22}]
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Aug 18 2024
STATUS
approved