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A118142
Numbers n such that a perfect n X n parity pattern exists.
1
4, 5, 9, 11, 16, 19, 23, 29, 30, 32, 33, 39, 47, 59, 61, 62, 64, 65, 67, 79, 84, 95, 101, 119, 123, 125, 126, 128, 129, 131, 135, 154, 159, 164, 169, 170, 185, 191, 203, 204, 239, 247, 251, 253, 254, 256, 257, 259
OFFSET
1,1
COMMENTS
See A118141 for definitions and references.
CROSSREFS
A subsequence of A117870.
Sequence in context: A162698 A166562 A031363 * A193584 A155149 A024821
KEYWORD
nonn
AUTHOR
Don Knuth, May 11 2006
STATUS
approved