A145273 - OEIS

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A145273

Parity sequence of A006893.

0

1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1

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OFFSET

1,1

COMMENTS

Complement of the parity sequence of iterated triangular numbers (A117872).

LINKS

Table of n, a(n) for n=1..98.

CROSSREFS

Cf. A145272. Complement of A117872

Sequence in context: A039983 A152490 A361465 * A295892 A120522 A157423

Adjacent sequences: A145270 A145271 A145272 * A145274 A145275 A145276

KEYWORD

easy,nonn

AUTHOR

Greg Huber, Oct 06 2008

STATUS

approved