A298670 Numbers k such that A298669(k)*2^k + 1 is a prime factor of the Fermat number 2^(2^(k-2)) + 1.

4, 5, 6, 7, 8, 11, 12, 13, 14, 17, 18, 20, 21, 23, 25, 27, 28, 29, 31, 32

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