

A126906


Smallest k such that 1 + k^(2*n+1)+Sum{j=1..n} k^(2*j) is prime.


0



1, 2, 1, 2, 1, 10, 17, 2, 1, 2, 1, 94, 122, 22, 1
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OFFSET

1,2


COMMENTS

1 is a term if and only if number of terms in polynomial is prime


LINKS

Table of n, a(n) for n=1..15.


CROSSREFS

Cf. A124151, A119863, A049407, A124175 A124176 A124177, A124178, A124179, A124180, A124181, A126908A126916.
Sequence in context: A071560 A248516 A097749 * A179508 A134304 A211096
Adjacent sequences: A126903 A126904 A126905 * A126907 A126908 A126909


KEYWORD

nonn


AUTHOR

Artur Jasinski, Dec 31 2006


STATUS

approved



