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Search: id:A084064
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A084064 Third row of number array A084061. +0
4
1, 1, 6, 45, 452, 5725, 87704, 1577849, 32618512, 762046137, 19856872032, 571007744549, 17962793210944, 613650073693397, 22624291883495808, 895379458590349425, 37861032312753094912, 1703550488551604490353 (list; graph; listen)
OFFSET

0,3

FORMULA

a(n)=(n-sqrt(2))^n/2+(n+sqrt(2))^n/2

CROSSREFS

Cf. A000312, A062024, A084065.

Adjacent sequences: A084061 A084062 A084063 this_sequence A084065 A084066 A084067

Sequence in context: A001879 A019577 A097814 this_sequence A109516 A078865 A086721

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), May 11 2003

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Last modified October 13 02:37 EDT 2008. Contains 145008 sequences.


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