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A091282 Exponent of 2 in -1+prime(n)^s if s is an exponent of the form 4k+2. 3
0, 3, 3, 4, 3, 3, 5, 3, 4, 3, 6, 3, 4, 3, 5, 3, 3, 3, 3, 4, 4, 5, 3, 4, 6, 3, 4, 3, 3, 5, 8, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 3, 7, 7, 3, 4, 3, 6, 3, 3, 4, 5, 5, 3, 9, 4, 3, 5, 3, 4, 3, 3, 3, 4, 4, 3, 3, 5, 3, 3, 6, 4, 5, 3, 3, 8, 3, 3, 5, 4, 3, 3, 5, 5, 4, 3, 7, 4, 3, 5, 3, 6, 4, 3, 3, 4, 3, 4, 3, 3, 3, 3, 3, 4, 3 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

EXAMPLE

a(1)=0 since -1+2^s is always odd...

CROSSREFS

Cf. A023506.

Cf. A091282-A091284, A007814.

Sequence in context: A080038 A121937 A003034 * A202708 A046537 A167596

Adjacent sequences:  A091279 A091280 A091281 * A091283 A091284 A091285

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Jan 20 2004

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Last modified February 15 19:15 EST 2012. Contains 205852 sequences.