A023410 In base 10, if any power of 2 ends with k 6's and 9's, they must be the first k terms of this sequence in reverse order.

6, 9, 6, 9, 6, 6, 6, 9, 6, 9, 6, 9, 9, 6, 9, 9, 9, 9, 9, 9, 6, 9, 6, 6, 6, 9, 9, 9, 9, 9, 9, 9, 9, 6, 9, 9, 6, 9, 9, 9, 9, 9, 6, 6, 6, 6, 9, 9, 6, 9, 6, 6, 9, 6, 6, 9, 6, 6, 9, 6, 6, 6, 6, 9, 6, 6, 9, 6, 9, 9, 9, 6, 6, 9, 9, 9, 6, 9, 9, 9, 6, 6, 6, 6, 6, 9, 6, 6, 9, 9, 9, 6, 9, 6, 9, 9, 6, 9, 6, 9, 9, 6, 6, 6, 6, 6, 9, 6

Offset

1,1

Links

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

Formula

a(n) = 3*A023397(n).

Crossrefs

Cf. A023397.

Sequence in context: A260230 A159691 A118947 * A010725 A193594 A011480

Adjacent sequences: A023407 A023408 A023409 * A023411 A023412 A023413

Keyword

nonn,base

Author

David W. Wilson

Status

approved