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A166388 Numbers of the form q-p, where p and q are prime and q = p^0+p^1+p^2+..+p^k for some k. 0
1, 5, 10, 26, 29, 125, 290, 1090, 1682, 2794, 3482, 5942, 7922, 8189, 10202, 17162, 19526, 27890, 29930, 30928, 85850, 88724, 131069, 146690, 292538, 458330, 491402, 524285, 552050, 579122, 597530, 683930, 703922, 732512, 734450, 797158, 829922 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..37.

EXAMPLE

For p = 2 and k = 1, q = 2^0+2^1 = 1+2 = 3 is prime, hence 3-2 = 1 is in the sequence.

For p = 3 and k = 6, q = 3^0+3^1+3^2+3^3+3^4+3^5+3^6 = 1+3+9+27+81+243+729 = 1093 is prime, hence 1093-3 = 1090 is in the sequence.

CROSSREFS

Cf. A000040 (prime numbers).

Sequence in context: A038252 A211865 A083010 * A290055 A066872 A301537

Adjacent sequences:  A166385 A166386 A166387 * A166389 A166390 A166391

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov, Oct 13 2009

EXTENSIONS

Edited and extended by Klaus Brockhaus, Oct 16 2009

STATUS

approved

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Last modified August 22 02:02 EDT 2018. Contains 313959 sequences. (Running on oeis4.)