A046300 Smallest integer k such that 2^n is the largest power of two that is contained in 2^k as a proper substring.

4, 5, 6, 7, 14, 15, 26, 102, 108, 109, 224, 103, 104, 105, 506, 507, 452, 1169, 1170, 1171, 8228, 10419, 15186, 5227, 16619, 16620, 16621, 25102, 130090, 62640, 330791, 330792, 351403, 273100, 681504, 649069, 352375, 3045104, 3045105, 3635007

Offset

0,1

Comments

First terms of A046287-A046299.

Links

Table of n, a(n) for n=0..39.

Example

2^4={1}6 and 2^0=1; 2^5=3{2} and 2^1=2; 2^6=6{4} and 2^2=4; etc.

Crossrefs

Cf. A033921.

Sequence in context: A037355 A294228 A342575 * A053738 A327101 A327082

Adjacent sequences: A046297 A046298 A046299 * A046301 A046302 A046303

Keyword

nonn,base

Author

Patrick De Geest, Jun 15 1998

Extensions

Definition reworded, offset changed to 0, and terms a(20)-a(36) added by Jon E. Schoenfield, Jun 04 2010

a(37)-a(39) from Jon E. Schoenfield, Jul 10 2010

Status

approved