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Search: id:A056162
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A056162 Sum_{k=0 to n} [(k!)^(n-k)]. +0
1
1, 2, 3, 5, 13, 71, 931, 30275, 2591059, 614059331, 423463272451, 907403624202755, 6082394749206781699, 140440480114401911810051, 10845109029138237198786147331 (list; graph; listen)
OFFSET

0,2

LINKS

Leroy Quet, Home Page (listed in lieu of email address)

EXAMPLE

a(5) = (0!)^5 + (1!)^4 + (2!)^3 + (3!)^2 + (4!)^1 + (5!)^0 = 1 + 1 + 8 + 36 + 24 + 1 = 71.

CROSSREFS

Sequence in context: A103594 A042695 A074394 this_sequence A001685 A074691 A139589

Adjacent sequences: A056159 A056160 A056161 this_sequence A056163 A056164 A056165

KEYWORD

easy,nonn

AUTHOR

Leroy Quet Jul 31 2000

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.


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