A136479 - OEIS

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A136479

Odd primitive abundant numbers n such that n = x^2 + x + y^2 with y^2 < 2*x and x and y primes, subsequence of A136476.

%I #6 Sep 08 2022 13:02:47

%S 9555,51765,17787315

%N Odd primitive abundant numbers n such that n = x^2 + x + y^2 with y^2 < 2*x and x and y primes, subsequence of A136476.

%C x values in A136477.

%e 9555 = 97^2+97+7^2 and 9555 odd primitive abundant number A136476(1), 97 and 7 primes so A136479(1) = 9555.

%Y Cf. A006038, A136476, A136477, A136478.

%K nonn,bref

%O 1,1

%A _Pierre CAMI_, Dec 31 2007