A355276 Number of n-digit terms in A347475.

2, 2, 1, 4, 4, 6, 3, 8, 9, 12, 11, 18, 33, 37, 40, 43, 64, 77, 71, 118, 135, 167, 241

Offset

1,1

Links

Table of n, a(n) for n=1..23.

Crossrefs

Cf. A000217 (triangular numbers), A014261 (numbers with only odd digits), A117960 (triangular numbers with only odd digits), A349243 (indices of the former), A347475 (such indices with only odd digits), A349247 (least such k-digit term), A355277 (largest such k-digit term).

Sequence in context: A213946 A145036 A341146 * A272888 A001404 A104580

Adjacent sequences: A355273 A355274 A355275 * A355277 A355278 A355279

Keyword

nonn,base,more

Author

M. F. Hasler, Sep 08 2022

Extensions

a(20)-a(23) from Michael S. Branicky, Sep 09 2022

Status

approved