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A145911 A145909(n)/8. 3
0, 1, 1, 2, 10, 5, 7, 28, 4, 5, 55, 22, 26, 91, 35, 40, 136, 17, 19, 190, 70, 77, 253, 92, 100, 325, 39, 42, 406, 145, 155, 496, 176, 187, 595, 70, 74, 703, 247, 260, 820, 287, 301, 946, 110, 115, 1081, 376, 392, 1225, 425, 442, 1378 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..52.

FORMULA

a(n)=A106619(n)*A106619(n+1).

MAPLE

A061039 := proc(n) numer(1/9-1/n^2) ; end proc:

A145909 := proc(n) ; A061039(6*n+3); end proc:

A145911 := proc(n) ; A145909(n)/8; end proc:

seq(A145911(n), n=0..80) ; # R. J. Mathar, Jan 06 2011

CROSSREFS

Sequence in context: A000170 A038216 A213603 * A234041 A027626 A096668

Adjacent sequences:  A145908 A145909 A145910 * A145912 A145913 A145914

KEYWORD

nonn,easy

AUTHOR

Paul Curtz, Oct 24 2008

STATUS

approved

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Last modified August 20 01:30 EDT 2017. Contains 290821 sequences.