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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
OFFSET
0,2
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
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Dec 20 2006
STATUS
approved