

A186893


Numbers n such that the Stern polynomial B(n,x) is irreducible and selfreciprocal.


1



1, 3, 7, 11, 31, 59, 127, 251, 377, 433, 1019, 1969, 2047, 3449, 4091, 8191, 11327, 15737, 16379, 32689, 36737, 64889, 65531
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OFFSET

1,2


COMMENTS

This appears to be numbers of the forms 4^k5 for k>1, 2^p1 for odd primes, and 377, 433, 1969, 3449, 11327,....


LINKS

Table of n, a(n) for n=1..23.


FORMULA

Intersection of A186890 and A186891.


CROSSREFS

Cf. A186890, A186891.
Sequence in context: A274134 A131588 A091938 * A051919 A119175 A038913
Adjacent sequences: A186890 A186891 A186892 * A186894 A186895 A186896


KEYWORD

nonn


AUTHOR

T. D. Noe, Feb 28 2011


STATUS

approved



