0,2
Table of n, a(n) for n=0..3.
a(2)=-11 because it is the sum of all elements for h=2 in A129398:
.....1
..1.-3..1
1.-3.-7.-3..1
..1..3..1
Cf. A129398.
Sequence in context: A276406 A130730 A153697 * A145790 A345109 A143465
Adjacent sequences: A129396 A129397 A129398 * A129400 A129401 A129402
sign
Jonas Wallgren, Apr 13 2007
approved
