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A136476 Odd primitive abundant numbers n such that n = x^2 + x + y^2 with y^2 < 2*x; a subsequence of A006038. 3

%I #3 Mar 31 2012 13:22:05

%S 9555,12705,15015,18585,21105,32445,41055,43065,46035,47355,51765,

%T 125895,129465,228735,257565,324555,375165,400785,409185,537285,

%U 693225,4513509,5569641,5581695,5959065,6084351,6338535,8824095,9597315

%N Odd primitive abundant numbers n such that n = x^2 + x + y^2 with y^2 < 2*x; a subsequence of A006038.

%C x values in A136477 and y values in A136478

%e 9555=97^2+97+7^2 and 9555 odd primitive abundant number

%Y Cf. A006038, A136477, A136478, A136479.

%K nonn

%O 1,1

%A _Pierre CAMI_, Jan 02 2008

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Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)