A115702 Triangular numbers whose digit reversal is the product of 2 palindromes greater than 1.

6, 21, 36, 45, 55, 66, 120, 210, 231, 253, 406, 465, 561, 630, 666, 820, 990, 3003, 3240, 4095, 4950, 5050, 5151, 5671, 5995, 6670, 8001, 20503, 23653, 24753, 29403, 31125, 33153, 37950, 41041, 43956, 54615, 57630, 60726, 63546, 66066, 73920

Offset: 1

Author

Giovanni Resta, Jan 31 2006

Keywords

• nonn
• base

Examples

			8001=T(126) and 1008=4*252.
		

Crossrefs

Cf. A115683.