A014888 n is equal to the number of 4s in all numbers <= n written in base 7.

761729, 761730, 823543, 1585272, 1585273, 1647086, 2408815, 2408816, 2470629, 3232358, 3232359

Offset: 1

Author

Olivier Gérard

Keywords

• nonn
• base
• fini
• full

Crossrefs

Cf. A014778, A014886.

Extensions

List proved complete by Hugo van der Sanden (cf. A014886).