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A083069 Main diagonal of number array A083064. 6
1, 2, 11, 94, 1037, 14006, 224695, 4185098, 88888889, 2122152922, 56288512931, 1642813694534, 52332842192581, 1807181134905134, 67253754435399407, 2683521610790452306, 114296029267382825201, 5175920921241202064498 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..100

FORMULA

a(n) = (n*(n+2)^n+1)/(n+1).

MATHEMATICA

Table[(n (n + 2)^n + 1) / (n + 1), {n, 0, 20}] (* Vincenzo Librandi, Jun 21 2013 *)

CROSSREFS

Cf. A083070, A083071.

Sequence in context: A068392 A164893 A099697 * A158837 A236962 A292916

Adjacent sequences:  A083066 A083067 A083068 * A083070 A083071 A083072

KEYWORD

easy,nonn

AUTHOR

Paul Barry, Apr 21 2003

STATUS

approved

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Last modified December 7 22:29 EST 2019. Contains 329850 sequences. (Running on oeis4.)