A376772 Index where n appears in A302656, or -1 if n does not appear there.

1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 21, 25, 44, 48, 24, 22, 13, 11, 14, 23, 52, 47, 49, 26, 53, 18, 17, 58, 38, 75, 50, 65, 51, 61, 55, 19, 77, 60, 42, 84, 96, 63, 68, 59, 28, 94, 78, 62, 64, 135, 73, 132, 81, 29, 146, 131, 300, 89, 83, 141, 138, 109, 30, 148, 133, 317, 401, 86, 41, 143, 113, 31, 149, 165, 323, 452, 180, 124, 39, 117, 32, 315, 181, 369, 478, 447, 166, 128, 15, 33

Offset

1,2

Comments

9*43 = 387 doesn't appear for n < 1262743. - Dominic McCarty, Nov 07 2024. [It is not known if 387 ever appears. - N. J. A. Sloane, Jan 09 2026]

Links

Dominic McCarty, Table of n, a(n) for n = 1..386 (terms 1..178 from N. J. A. Sloane)

Crossrefs

Cf. A302656, A376776.

Summary: the 16 sequences derived from A302656 are A376769-A376776, A377903-A377904, A377906-A377911.

Sequence in context: A356350 A288528 A352927 * A376773 A200372 A059043

Adjacent sequences: A376769 A376770 A376771 * A376773 A376774 A376775

Keyword

nonn

Author

N. J. A. Sloane, Nov 04 2024; updated Nov 21 2024

Status

approved