%I #8 Aug 06 2021 07:06:20
%S 1,3,6,15,21,28,36,45,55,66,78,91,136,171,231,276,378,406,435,465,528,
%T 561,595,666,703,741,861,903,990,1081,1128,1176,1225,1275,1326,1431,
%U 1540,1596,1653,1711,1770,1953,2016,2211,2278,2346,2485,2556,2628,2775
%N Triangular numbers whose digit permutations yield no further triangular numbers.
%Y Cf. A000217, A069674, A077671, A095870.
%K nonn,base
%O 1,2
%A _Ray Chandler_, Jun 29 2004
%E Offset changed to 1 by _Jinyuan Wang_, Aug 06 2021