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%I #4 Mar 30 2012 17:29:16
%S 1,10,120,17020,20503,156520,1087075,1021735,1026028,1053426,104653,
%T 10623745,10280845,1004653,10568503,10725396,10762480,12890503,
%U 10348975,10394520,101495628,100543290,102495403,100359028,104972805,124780503
%N Least triangular number whose digit permutations yield exactly n further triangular numbers.
%e 20503 yields 253, 325, 23005 and 52003.
%Y Cf. A069674, A077671, A095869.
%K nonn,base
%O 0,2
%A _Ray Chandler_, Jun 29 2004