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A167753
Hankel transform of A167751.
2
1, 1, 0, -1, -1, 0, 0, 1, 0, -1, 0, 0, 0, -1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, -1
OFFSET
0,1
COMMENTS
The nonzero terms appear to be indexed by ceiling((n+1)^2/4) - 0^n (see A004652).
CROSSREFS
Cf. A167752.
Sequence in context: A372456 A278513 A134842 * A353816 A141727 A298952
KEYWORD
sign
AUTHOR
Paul Barry, Nov 10 2009
STATUS
approved