A069673 Nonpalindromic triangular numbers whose digit reversal is also a triangular number (possibly with fewer digits).

10, 120, 153, 190, 300, 351, 630, 820, 17578, 87571, 156520, 180300, 185745, 547581, 557040, 678030, 1461195, 1851850, 5911641, 6056940, 12145056, 12517506, 16678200, 56440000, 60571521, 65054121, 157433640, 188267310, 304119453, 354911403, 1261250200

Offset: 1

Author

Amarnath Murthy, Apr 06 2002

Keywords

• nonn
• base

Links

• Giovanni Resta, Table of n, a(n) for n = 1..123 (terms < 2*10^24)

Crossrefs

See A066528 for a different version.

Cf. A066703, A179889.

Cf. A003098, A061455, A066569.

Extensions

More terms from Jason Earls, Jun 07 2002

a(27)-a(31) from Giovanni Resta, Jun 20 2015