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A115744 Triangular numbers that are the product of 2 palindromes greater than 1. 2
6, 10, 15, 21, 28, 36, 45, 55, 66, 231, 528, 666, 1128, 2016, 2211, 2628, 2775, 3003, 3570, 3916, 4095, 5995, 6105, 6216, 6903, 8646, 21736, 31878, 34980, 37950, 43956, 45753, 52003, 58653, 65703, 66066, 73153, 83028, 89676, 93528, 116886 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

6903=T(117) and 6903=9*767.

CROSSREFS

Cf. A115683, A115743, A115745.

Sequence in context: A157937 A080255 A168102 * A122783 A124000 A068443

Adjacent sequences:  A115741 A115742 A115743 * A115745 A115746 A115747

KEYWORD

nonn,base

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), Jan 31 2006

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Last modified February 16 17:11 EST 2012. Contains 205938 sequences.