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Search: id:A048482
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A048482 a(n)=T(n,n), array T given by A048472. +0
3
1, 3, 13, 49, 161, 481, 1345, 3585, 9217, 23041, 56321, 135169, 319489, 745473, 1720321, 3932161, 8912897, 20054017, 44826625, 99614721, 220200961, 484442113, 1061158913, 2315255809, 5033164801 (list; graph; listen)
OFFSET

0,2

FORMULA

a(n) = (n^2+n)2^(n-1) + 1. - Ralf Stephan (ralf(AT)ark.in-berlin.de), Sep 02 2003

CROSSREFS

Cf. A002999, A003013, A001787, A005183.

Equals 2 * A001788(n) + 1.

Sequence in context: A122424 A027326 A108946 this_sequence A094978 A045908 A118589

Adjacent sequences: A048479 A048480 A048481 this_sequence A048483 A048484 A048485

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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