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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 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Conjecture (Jasiński): 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
CROSSREFS
Sequence in context: A138999 A351306 A265994 * A232589 A010175 A363839
KEYWORD
nonn,more
AUTHOR
_Artur Jasinski_, Nov 29 2011
EXTENSIONS
Minor edits by _N. J. A. Sloane_, Feb 23 2014
STATUS
approved

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Last modified March 4 23:31 EST 2024. Contains 370537 sequences. (Running on oeis4.)