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A115702 Triangular numbers whose digit reversal is the product of 2 palindromes greater than 1. 0
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..42.

EXAMPLE

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

CROSSREFS

Cf. A115683.

Sequence in context: A261077 A063126 A256866 * A003340 A345813 A139606

Adjacent sequences:  A115699 A115700 A115701 * A115703 A115704 A115705

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Jan 31 2006

STATUS

approved

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Last modified October 26 02:14 EDT 2021. Contains 348256 sequences. (Running on oeis4.)