A263258 a(n) = A049820(A263257(n)).

0, 1, 3, 5, 17, 21, 23, 27, 29, 31, 35, 39, 41, 47, 51, 53, 57, 59, 61, 65, 69, 71, 73, 77, 221, 223, 231, 233, 237, 239, 245, 249, 261, 263, 267, 269, 275, 277, 287, 291, 295, 299, 303, 315, 317, 323, 329, 331, 335, 337, 345, 347, 349, 357, 363, 855, 857, 1073, 1077, 1085, 1087, 1095, 1097, 1101, 1111

Offset

1,3

Comments

Sequence is strictly increasing.

Links

Antti Karttunen, Table of n, a(n) for n = 1..1835

Formula

a(n) = A049820(A263257(n)).

Prog

(Scheme) (define (A263258 n) (A049820 (A263257 n)))

Crossrefs

Cf. A049820, A263257.

Sequence in context: A119768 A020592 A295387 * A347885 A326653 A218624

Adjacent sequences: A263255 A263256 A263257 * A263259 A263260 A263261

Keyword

nonn

Author

Antti Karttunen, Nov 07 2015

Status

approved