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A048478 a(n) = T(6,n), array T given by A048472. 1
1, 8, 29, 85, 225, 561, 1345, 3137, 7169, 16129, 35841, 78849, 172033, 372737, 802817, 1720321, 3670017, 7798785, 16515073, 34865153, 73400321, 154140673, 322961409, 675282945, 1409286145, 2936012801, 6106906625, 12683575297 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

FORMULA

a(n) = 7*n * 2^(n-1) + 1.

PROG

(MAGMA) [7*n * 2^(n-1) + 1: n in [0..30]]; // Vincenzo Librandi, Sep 23 2011

CROSSREFS

n-th difference of a(n), a(n-1), ..., a(0) is (7, 14, 21, ...).

Sequence in context: A046664 A055536 A131438 * A001360 A116952 A199207

Adjacent sequences:  A048475 A048476 A048477 * A048479 A048480 A048481

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified October 22 02:49 EDT 2014. Contains 248382 sequences.