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Search: id:A083066
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A083066 5th row of number array A083064. +0
7
1, 5, 29, 173, 1037, 6221, 37325, 223949, 1343693, 8062157, 48372941, 290237645, 1741425869, 10448555213, 62691331277, 376147987661, 2256887925965, 13541327555789, 81247965334733, 487487792008397, 2924926752050381 (list; graph; listen)
OFFSET

0,2

FORMULA

a(n)=(4*6^n+1)/5 G.f. (1-2x)/((1-6x)(1-x)) E.g.f. (4*exp(6x)+exp(x))/5

CROSSREFS

Cf. A083065, A083067.

Sequence in context: A122370 A088349 A137625 this_sequence A139174 A081336 A059231

Adjacent sequences: A083063 A083064 A083065 this_sequence A083067 A083068 A083069

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Apr 21 2003

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.


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