A292924 a(n) is the least k such that A122953(k) = n.

1, 2, 4, 6, 11, 12, 22, 24, 28, 44, 52, 56, 88, 92, 112, 116, 186, 184, 220, 232, 244, 368, 376, 440, 472, 488, 744, 752, 880, 888, 976, 984, 1504, 1512, 1780, 1776, 1912, 1968, 2008, 3024, 3048, 3552, 3568, 3824, 3952, 4016, 6064, 6096, 7112, 7136, 7648, 7664

Offset

1,2

Comments

All positive terms of A112510 belong to this sequence.

The first known odd terms are a(1) = 1, a(5) = 11 and a(77) = 61321.

The sequence is not strictly increasing; for example a(17) = 186 and a(18) = 184.

The binary plot of the first terms has interesting features (see Links section).

Links

Rémy Sigrist, Table of n, a(n) for n = 1..288

Rémy Sigrist, Binary plot of the first 288 terms

Rémy Sigrist, C++ program for A292924

Example

The first occurrence of 6 in A122953 is A122953(12) = 6, hence a(6) = 12.

Prog

(C++) See Links section.

Crossrefs

Cf. A112510, A122953.

Sequence in context: A030783 A171927 A136969 * A015903 A224860 A327309

Adjacent sequences: A292921 A292922 A292923 * A292925 A292926 A292927

Keyword

nonn,base

Author

Rémy Sigrist, Mar 09 2018

Status

approved