A023399 If any power of 2 ends with k 2's and 7's, they must be the first k terms of this sequence in reverse order.

2, 7, 2, 2, 2, 2, 7, 2, 7, 2, 7, 7, 7, 7, 2, 2, 7, 2, 7, 2, 7, 7, 2, 7, 7, 2, 7, 2, 7, 7, 2, 2, 2, 2, 7, 2, 7, 2, 7, 2, 2, 2, 7, 7, 7, 7, 2, 2, 7, 7, 7, 2, 7, 2, 2, 7, 7, 7, 7, 2, 7, 7, 2, 7, 7, 2, 7, 7, 7, 7, 7, 2, 2, 7, 2, 7, 7, 7, 7, 7, 2, 2, 7, 7, 2, 2, 7, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 2, 7, 2, 7, 7, 2, 7

Offset

1,1

Links

Ray Chandler, Table of n, a(n) for n = 1..10000

Crossrefs

Sequence in context: A102886 A204382 A072981 * A195476 A082072 A082066

Adjacent sequences: A023396 A023397 A023398 * A023400 A023401 A023402

Keyword

nonn,base

Author

David W. Wilson

Status

approved