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A298670 Numbers n such that A298669(n)*2^n + 1 is a prime factor of the Fermat number 2^(2^(n - 2)) + 1. 1
4, 5, 6, 7, 8, 11, 12, 13, 14, 17, 18, 20, 21, 23, 25, 27, 28, 29, 31, 32 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..20.

CROSSREFS

Cf. A298669.

Sequence in context: A334917 A295742 A047314 * A039040 A129740 A161428

Adjacent sequences:  A298667 A298668 A298669 * A298671 A298672 A298673

KEYWORD

nonn,more

AUTHOR

Arkadiusz Wesolowski, Jan 24 2018

STATUS

approved

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Last modified June 25 06:20 EDT 2021. Contains 345452 sequences. (Running on oeis4.)