A095869 Triangular numbers whose digit permutations yield no further triangular numbers.

1, 3, 6, 15, 21, 28, 36, 45, 55, 66, 78, 91, 136, 171, 231, 276, 378, 406, 435, 465, 528, 561, 595, 666, 703, 741, 861, 903, 990, 1081, 1128, 1176, 1225, 1275, 1326, 1431, 1540, 1596, 1653, 1711, 1770, 1953, 2016, 2211, 2278, 2346, 2485, 2556, 2628, 2775

Offset

1,2

Links

Table of n, a(n) for n=1..50.

Crossrefs

Cf. A000217, A069674, A077671, A095870.

Sequence in context: A310126 A298015 A256906 * A292610 A069559 A117748

Adjacent sequences: A095866 A095867 A095868 * A095870 A095871 A095872

Keyword

nonn,base

Author

Ray Chandler, Jun 29 2004

Extensions

Offset changed to 1 by Jinyuan Wang, Aug 06 2021

Status

approved