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A084064 Third row of number array A084061. 3
1, 1, 6, 45, 452, 5725, 87704, 1577849, 32618512, 762046137, 19856872032, 571007744549, 17962793210944, 613650073693397, 22624291883495808, 895379458590349425, 37861032312753094912, 1703550488551604490353 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..17.

FORMULA

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

CROSSREFS

Cf. A000312, A062024, A084065.

Sequence in context: A097814 A239910 A228194 * A186925 A294642 A109516

Adjacent sequences:  A084061 A084062 A084063 * A084065 A084066 A084067

KEYWORD

nonn,easy

AUTHOR

Paul Barry, May 11 2003

STATUS

approved

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Last modified December 11 13:58 EST 2017. Contains 295878 sequences.