

A201278


a(n) specifies the quadratic extension sqrt(a(n)) for A201047(n).


6



10, 2, 2, 5, 5, 130, 185, 5, 2, 2, 10, 10, 5, 5, 10, 17, 17, 5, 5, 5, 53, 53, 13, 13, 1490, 5, 2, 2, 5, 1565, 5
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OFFSET

1,1


COMMENTS

Conjecture (JasiĆski): The numbers in this sequence are multiplicative combinations of: primes congruent to 1 or 2 modulo 4 (A002313), Pythagorean primes (A002144), the number 2, and norms of Gaussian primes A055025.


LINKS

Table of n, a(n) for n=1..31.


CROSSREFS

Cf. A200216, A200656, A201047.
Sequence in context: A136712 A138999 A265994 * A232589 A010175 A323421
Adjacent sequences: A201275 A201276 A201277 * A201279 A201280 A201281


KEYWORD

nonn,more


AUTHOR

Artur Jasinski, Nov 29 2011


EXTENSIONS

Minor edits by N. J. A. Sloane, Feb 23 2014


STATUS

approved



