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A139292 2^(2p - 1)/8, where p is prime. 7
1, 4, 64, 1024, 262144, 4194304, 1073741824, 17179869184, 4398046511104, 18014398509481984, 288230376151711744, 1180591620717411303424, 302231454903657293676544, 4835703278458516698824704 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..14.

FORMULA

a(n)=A139286(n)/8.

MATHEMATICA

2^(2#-1)/8&/@Prime[Range[20]] (* Harvey P. Dale, Aug 19 2012 *)

CROSSREFS

Cf. A139286, A139287, A139288, A139289, A139290, A139291, A139293, A139294, A139306.

Sequence in context: A010042 A154021 A013709 * A152923 A085807 A014729

Adjacent sequences:  A139289 A139290 A139291 * A139293 A139294 A139295

KEYWORD

nonn

AUTHOR

Omar E. Pol, Apr 13 2008

EXTENSIONS

More terms from Jon E. Schoenfield, Jul 16 2010

STATUS

approved

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Last modified March 23 02:53 EDT 2019. Contains 321422 sequences. (Running on oeis4.)