A191240 - OEIS

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A191240

Primes whose binary digits are the concatenation of the first k bits in the concatenation of the bits of the primes.

1

2, 5, 11, 23, 751, 98532121, 1774996909423391837779439, 119118026194914721260250490587027, 589843896109318746798137859575487687505955816477967656273093, 39583753805230400911526669071502500954511688078028890441229798158139

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Charles R Greathouse IV, Table of n, a(n) for n = 1..13

EXAMPLE

The primes are 10, 101, 1011, 10111, 1011101111, ... in binary.

CROSSREFS

Cf. A000079, A004676, A019518, A190480.

Sequence in context: A067149 A354150 A344782 * A208952 A091358 A091359

Adjacent sequences: A191237 A191238 A191239 * A191241 A191242 A191243

KEYWORD

nonn,base

AUTHOR

Juri-Stepan Gerasimov, May 28 2011

STATUS

approved