A330897 a(n) is the least k such that A330896(k) = n.

1, 3, 8, 12, 21, 35, 43, 71, 85, 107, 133, 138, 173, 220, 240, 290, 320, 355, 405, 430, 512, 559, 593, 622, 727, 731, 846, 901, 940, 1071, 1107, 1207, 1279, 1389, 1490, 1544, 1657, 1699, 1768, 1870, 1935, 2049, 2198, 2346, 2468, 2478, 2612, 2693, 2817, 2919

Offset

1,2

Links

Rémy Sigrist, Table of n, a(n) for n = 1..10000

Rémy Sigrist, C program for A330897

Formula

A330896(a(n)) = n.

Example

The first terms of A330896 are:
           n|  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 ...
  A330896(n)|  1  1  2  1  2  2  1  3  2  3  1  4  2  3  3  1  4  2  4  3  5 ...
- hence a(1) = 1, a(2) = 3, a(3) = 8, a(4) = 12, a(5) = 21.

Prog

(C) See Links section.

Crossrefs

Cf. A330896.

Sequence in context: A350221 A370755 A022407 * A169923 A158022 A209934

Adjacent sequences: A330894 A330895 A330896 * A330898 A330899 A330900

Keyword

nonn

Author

Rémy Sigrist, May 01 2020

Status

approved