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A062809 Sum (n - i)^(1 + i), i = 1..n. 0
0, 1, 5, 18, 60, 203, 725, 2772, 11368, 49853, 232757, 1151902, 6018772, 33087191, 190780197, 1150653904, 7241710912, 47454745785, 323154696165, 2282779990474, 16700904488684, 126356632390275, 987303454928949 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

MAPLE

a:=n->sum((n-j)^j, j=2..n): seq(a(n), n=2..24); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 07 2008

MATHEMATICA

Sum[(n - i)^(1 + i), {i, 1, n}]

CROSSREFS

Sequence in context: A133648 A099449 A104630 * A122234 A113301 A111567

Adjacent sequences:  A062806 A062807 A062808 * A062810 A062811 A062812

KEYWORD

nonn,easy

AUTHOR

Olivier Gerard (olivier.gerard(AT)gmail.com), Jun 23 2001

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Last modified February 16 08:13 EST 2012. Contains 205893 sequences.