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Search: id:A126958
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A126958 Define an array by d(m, 0) = 1, d(m, 1) = m; d(m, k) = (m - k + 1) d(m+1, k-1) - (k-1) (m+1) d(m+2, k-2). Sequence gives d(n,4). +0
2
36, 24, -60, -216, -420, -624, -756, -720, -396, 360, 1716, 3864, 7020, 11424, 17340, 25056, 34884, 47160, 62244, 80520, 102396, 128304, 158700, 194064, 234900, 281736, 335124, 395640, 463884, 540480, 626076, 721344, 826980, 943704, 1072260, 1213416, 1367964 (list; graph; listen)
OFFSET

0,1

REFERENCES

V. van der Noort and N. J. A. Sloane, Paper in preparation, 2007.

FORMULA

a(n) = (n+3)*(n+1)*(n^2-10*n+12).

CROSSREFS

A row of A105937.

Adjacent sequences: A126955 A126956 A126957 this_sequence A126959 A126960 A126961

Sequence in context: A065784 A081726 A074155 this_sequence A070726 A083819 A022992

KEYWORD

sign

AUTHOR

Vincent v.d. Noort, Mar 21 2007

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Last modified October 16 00:31 EDT 2008. Contains 145098 sequences.


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