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A125020
a(n) = (A124983(n)-1)/4.
2
0, 2, 11, 12, 20, 29, 30, 38, 61, 65, 83, 90, 92, 101, 110, 119, 132, 137, 151, 159, 164, 182, 200, 208, 218, 227, 240, 245, 254, 263, 272, 308, 335, 344, 353, 355, 389, 393, 407, 434, 443, 451, 453, 462, 502, 514, 515, 524, 542, 551, 552, 578, 587, 600, 605, 623
OFFSET
1,2
LINKS
MATHEMATICA
Select[Range[0, 600], !PrimeQ[4*# + 1] && Length @ PowersRepresentations[4*# + 1, 2, 2] == 1 &] (* Amiram Eldar, Mar 12 2020 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Artur Jasinski, Nov 16 2006
EXTENSIONS
More terms from Amiram Eldar, Mar 12 2020
STATUS
approved