A377862 A variant of Golomb's sequence (A001462): the n-th digit of the sequence gives the number of times n appears, with a(1) = 1 and a(2) = 2.

1, 2, 2, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 19, 19

Offset: 1

Author

Rémy Sigrist, Nov 10 2024

Keywords

• nonn
• base

Comments

This sequence is a base-10 variant of A167500.

Numbers corresponding to positions of zeros do not appear in the sequence.

This sequence first differ from A001462 for n = 169: a(169) = 31 whereas A001462(169) = 29.

Links

• Rémy Sigrist, Table of n, a(n) for n = 1..10000
• Rémy Sigrist, Scatterplot of the first 500 of this sequence and of A001462
• Rémy Sigrist, PARI program

Crossrefs

Cf. A001462, A087739, A167500, A377863 (missing numbers), A377896.

Programs

PARI

\\ See Links section.