A186893 - OEIS

A186893

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

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

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

This appears to be numbers of the forms 4^k-5 for k>1, 2^p-1 for odd primes, and 377, 433, 1969, 3449, 11327,....

LINKS

FORMULA

Intersection of A186890 and A186891.

CROSSREFS

KEYWORD

nonn

AUTHOR

T. D. Noe, Feb 28 2011

STATUS

approved