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

9555, 12705, 15015, 18585, 21105, 32445, 41055, 43065, 46035, 47355, 51765, 125895, 129465, 228735, 257565, 324555, 375165, 400785, 409185, 537285, 693225, 4513509, 5569641, 5581695, 5959065, 6084351, 6338535, 8824095, 9597315

Offset

1,1

Comments

x values in A136477 and y values in A136478

Links

Table of n, a(n) for n=1..29.

Example

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

Crossrefs

Cf. A006038, A136477, A136478, A136479.

Sequence in context: A251909 A251906 A223367 * A136479 A254015 A254022

Adjacent sequences: A136473 A136474 A136475 * A136477 A136478 A136479

Keyword

nonn

Author

Pierre CAMI, Jan 02 2008

Status

approved