A217917 Odd numbers that appear in sequence A217916.

1, 5, 9, 11, 15, 17, 27, 29, 39, 41, 47, 49, 55, 61, 65, 69, 73, 79, 85, 89, 93, 111, 117, 119, 125, 137, 149, 153, 155, 161, 175, 181, 191, 193, 195, 211, 227, 231, 243, 255, 267, 269, 275, 279, 287, 295, 301, 307, 315, 317, 329, 335, 347, 349, 355, 357, 359, 361, 365

Offset

1,2

Links

Paul D. Hanna, Table of n, a(n) for n = 1..286

Formula

a(n) = A217916( (n+1)*(n+2)/2 - 1 ) for n>=1.

Crossrefs

Cf. A217916.

Sequence in context: A111318 A373181 A314589 * A063213 A314590 A314591

Adjacent sequences: A217914 A217915 A217916 * A217918 A217919 A217920

Keyword

nonn

Author

Paul D. Hanna, Mar 04 2013

Status

approved