A118143 Numbers n for which there exists a perfect n X n parity pattern with 8-fold symmetry.

4, 5, 11, 16, 23, 29, 30, 32, 47, 59, 62, 64, 65, 84, 95, 101, 119, 125, 126, 128, 131, 154, 164, 170, 185, 191, 203, 204, 239, 251, 254, 256, 257

Offset

1,1

Comments

See A118141 for definitions and references.

If an odd number m appears then so does 2m+1.

Links

Table of n, a(n) for n=1..33.

Crossrefs

Cf. A118141.

Sequence in context: A076065 A176115 A066898 * A001350 A077238 A185507

Adjacent sequences: A118140 A118141 A118142 * A118144 A118145 A118146

Keyword

nonn,more

Author

Don Knuth, May 11 2006

Status

approved