A274186 Determinants of the Hankel matrices for the complement of the period-doubling sequence A035263.

0, -1, 0, 1, 0, -1, 0, 9, 0, -1, 0, 1, 0, -1, 0, 225, 0, -1, 0, 1, 0, -1, 0, 9, 0, -1, 0, 1, 0, -81, 0, 245025, 0, -81, 0, 1, 0, -1, 0, 9, 0, -1, 0, 1, 0, -1, 0, 225, 0, -1, 0, 1, 0, -1, 0, 9, 0, -81, 0, 6561, 0, -4100625, 0, 218813450625, 0, -4100625, 0, 6561, 0, -81, 0, 9, 0, -1, 0, 1, 0, -1, 0, 225, 0, -1, 0, 1, 0, -1, 0, 9, 0, -1, 0, 1, 0, -81

Offset

1,8

Comments

The complement of the period-doubling sequence is generated by the map sending 0 -> 01, 1 -> 00.

Links

Table of n, a(n) for n=1..94.

Robbert Fokkink, Cor Kraaikamp, and Jeffrey Shallit, Hankel matrices for the period-doubling sequence, arxiv preprint arXiv:1511.06569 [math.CO], November 2015.

Crossrefs

Cf. A265025, A035263.

Sequence in context: A278006 A221804 A275107 * A158336 A021530 A110909

Adjacent sequences: A274183 A274184 A274185 * A274187 A274188 A274189

Keyword

sign

Author

Jeffrey Shallit, Jun 21 2016

Status

approved