A167752 Hankel transform of A167750.

1, 1, 1, 0, -1, 0, 1, 0, 0, -1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, -1

Offset

0,1

Comments

The nonzero terms appear to be indexed by the quarter-squares floor((n+1)^2/4) = A002620(n+1).

abs(a(n)) = A237347(n) - 2. - Reinhard Zumkeller, Mar 18 2014

Links

Table of n, a(n) for n=0..49.

Crossrefs

Cf. A167753.

Sequence in context: A297086 A349920 A369253 * A240025 A100923 A050073

Adjacent sequences: A167749 A167750 A167751 * A167753 A167754 A167755

Keyword

sign

Author

Paul Barry, Nov 10 2009

Status

approved