A217608 After the 51-digit 2^168, a(n) is the number setting a record for non-pandigital right segment length of 2^a(n).

183, 229, 235, 263, 296, 494, 1088, 13211, 102221, 172316, 675531, 749254, 1018738

Offset

1,1

Comments

The rationale for the starting point are twofold: 1) A number which is itself non-pandigital could be considered in some sense as having infinitely many digits in its segment for the purposes of the record here (if the sole missing digit were not 0) and 2) After 168 a value giving a 'record' segment length under 51 would seem peculiar. A217609 gives the length of the shortest padigital right segment of 2^A217608 (not the longest non-pandigital one).

Links

Table of n, a(n) for n=1..13.

Example

2^183 requires its rightmost 53 digits for an occurrence of each digit 0-9 to be found.

Crossrefs

Cf. A217609.

Sequence in context: A028676 A228535 A248628 * A264779 A133609 A305349

Adjacent sequences: A217605 A217606 A217607 * A217609 A217610 A217611

Keyword

nonn,base,less

Author

James G. Merickel, Oct 08 2012

Status

approved