A277026 n for which A277023(4n) is not a square, thus A277024(4n) is nonzero.

7, 8, 11, 13, 16, 19, 22, 25, 27, 29, 32, 38, 43, 46, 47, 49, 50, 53, 59, 61, 62, 64, 65, 67, 73, 75, 76, 77, 79, 82, 83, 85, 86, 87, 89, 92, 94, 97, 100, 101, 103, 104, 106, 109, 113, 115, 116, 119, 122, 124, 125, 127, 128, 130, 133, 134, 137, 140, 141, 143, 145, 146, 148, 151, 152, 154, 155, 163, 164, 167, 168, 169, 170, 173, 174, 176, 178, 179, 181, 184, 185

Offset

1,1

Links

Table of n, a(n) for n=1..81.

Prog

(Scheme, with Antti Karttunen's IntSeq-library)
(define A277026 (NONZERO-POS 1 1 (lambda (n) (A277024 (* 4 n)))))

Crossrefs

Complement: A277025.

Cf. A277024.

Sequence in context: A054221 A195240 A253318 * A309592 A090385 A350694

Adjacent sequences: A277023 A277024 A277025 * A277027 A277028 A277029

Keyword

nonn

Author

Antti Karttunen, Oct 03 2016

Status

approved