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A140089 Products of two triangular numbers each > 1. 2
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 (list; graph; refs; listen; history; text; internal format)
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 A221533 A139591

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

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Last modified July 5 01:46 EDT 2020. Contains 335457 sequences. (Running on oeis4.)