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A126158
Secondary diagonal of symmetric triangle
A126155
: a(n) =
A126155
(n+1,n).
3
1, 35, 1195, 63365, 5126905, 594825635, 93900238195, 19371302880965, 5061231946045105, 1633629246059544035, 638388562675692767995, 297033561831219312442565, 162266449500902451982091305
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OFFSET
0,2
LINKS
Table of n, a(n) for n=0..12.
FORMULA
a(n)=
A126157
(n+1)-4*
A126157
(n). -
Philippe Deléham
, Jul 22 2007
CROSSREFS
Cf.
A126155
;
A126156
(column 0),
A126157
(main diagonal).
Sequence in context:
A170716
A170754
A218737
*
A200724
A207492
A207889
Adjacent sequences:
A126155
A126156
A126157
*
A126159
A126160
A126161
KEYWORD
nonn
AUTHOR
Paul D. Hanna
, Dec 20 2006
STATUS
approved
