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Search: id:A062970
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A062970 a(n) = 1 + sum_{j=1..n} j^j. +0
6
1, 2, 6, 33, 289, 3414, 50070, 873613, 17650829, 405071318, 10405071318, 295716741929, 9211817190185, 312086923782438, 11424093749340454, 449317984130199829, 18896062057839751445, 846136323944176515622 (list; graph; listen)
OFFSET

0,2

COMMENT

The usual convention in the OEIS is that 0^0 = 1. This sequence could therefore be defined as Sum_{j=0..n} j^j. See also A001923.

LINKS

T. D. Noe, Table of n, a(n) for n=0..100

FORMULA

a(n) = a(n-1)+A000312(n) = A001923(n)+1.

EXAMPLE

a(4) = 1+1^1+2^2+3^3+4^4 = 1+1+4+27+256 = 289.

CROSSREFS

Sequence in context: A053042 A012874 A005161 this_sequence A088125 A064940 A105142

Adjacent sequences: A062967 A062968 A062969 this_sequence A062971 A062972 A062973

KEYWORD

nonn

AUTHOR

Henry Bottomley (se16(AT)btinternet.com), Jul 23 2001

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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