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A014931 a(1)=1, a(n)=n*16^(n-1)+a(n-1). 2
1, 33, 801, 17185, 344865, 6636321, 124076833, 2271560481, 40926266145, 728121033505, 12822748939041, 223928981472033, 3883103678710561, 66933498461897505, 1147797409030816545, 19594541482740368161 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..16.

FORMULA

a(n) = (1+16^n*(15*n-1))/225 [From Paolo P. Lava, Jan 13 2009]

CROSSREFS

Sequence in context: A164750 A100788 A051565 * A197358 A101632 A159675

Adjacent sequences:  A014928 A014929 A014930 * A014932 A014933 A014934

KEYWORD

nonn,easy

AUTHOR

Olivier Gérard

STATUS

approved

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Last modified June 19 19:50 EDT 2013. Contains 226416 sequences.