A140089 Products of two triangular numbers each > 1.

9, 18, 30, 36, 45, 60, 63, 84, 90, 100, 108, 126, 135, 150, 165, 168, 198, 210, 216, 225, 234, 270, 273, 280, 315, 330, 360, 396, 408, 420, 441, 450, 459, 468, 513, 540, 546, 550, 570, 588, 630, 660, 675, 693, 720, 756, 759, 780, 784, 816, 825, 828, 900, 910

Offset

1,1

Links

Table of n, a(n) for n=1..54.

Crossrefs

Cf. A000217. Subsequence of A085780.

Sequence in context: A194152 A044433 A161570 * A183444 A349417 A221533

Adjacent sequences: A140086 A140087 A140088 * A140090 A140091 A140092

Keyword

nonn

Author

N. J. A. Sloane, Jun 27 2008

Extensions

More terms from Rick L. Shepherd and John W. Layman, Jul 03 2008

Status

approved