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Search: id:A154226
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| A154226 |
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List of pairs: {((n*(n+1)/2)^2, (n!)^3}. |
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+0
1
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| 0, 1, 1, 1, 9, 8, 36, 216, 100, 13824, 225, 1728000, 441, 373248000, 784, 128024064000, 1296, 65548320768000, 2025, 47784725839872000, 3025, 47784725839872000000, 4356, 63601470092869632000000, 6084
(list; graph; listen)
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OFFSET
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0,5
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FORMULA
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{((n*(n+1)/2)^2, (n!)^3}.
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MATHEMATICA
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Clear[a, n, n]; a[0] = 0; a[n_] := a[n] = n^3 + a[n - 1];
b[0] = 1; b[n_] := b[n] = n^3*b[n - 1];
Table[{a[n] - (n*(n + 1)/2)^2, b[n] - (n!)^3}, {n, 0, 10}];
Flatten[Table[{a[n], b[n]}, {n, 0, 15}]]
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CROSSREFS
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Sequence in context: A063561 A068823 A159078 this_sequence A030027 A082201 A038298
Adjacent sequences: A154223 A154224 A154225 this_sequence A154227 A154228 A154229
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KEYWORD
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nonn,tabf
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AUTHOR
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Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Jan 05 2009
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