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A082106 Main diagonal of number array A082105. 2
1, 6, 33, 118, 321, 726, 1441, 2598, 4353, 6886, 10401, 15126, 21313, 29238, 39201, 51526, 66561, 84678, 106273, 131766, 161601, 196246, 236193, 281958, 334081, 393126, 459681, 534358, 617793, 710646, 813601, 927366, 1052673, 1190278 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

FORMULA

a(n)=n^4+4n^2+1

CROSSREFS

Cf. A082047, A082044.

Sequence in context: A204185 A057818 A063267 * A073375 A089097 A120009

Adjacent sequences:  A082103 A082104 A082105 * A082107 A082108 A082109

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Apr 03 2003

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Last modified February 16 19:23 EST 2012. Contains 205945 sequences.