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%I #3 Feb 27 2009 03:00:00
%S 0,6,15,28,36,55,105,120,210,231,378,496,528,666,990,1540,2145,2556,
%T 2628,3081,4095,4186,5460,5565,6105,6555,7140,8128,8256,9316,11628,
%U 14706,17955,19900,20100,22155,23436,25200,26565,26796,31878,32131
%N Triangular numbers n divisible by the number of triangular numbers smaller than n.
%C The number of triangular numbers smaller than n can be found in sequence A002024 because n appears n times.
%e 2145 is in the sequence because (1) it is a triangular number, (2) the number of triangular numbers smaller than 2145 is 11 and (3) 2145 is divisible by 11.
%Y Cf. A002024, A000217.
%K nonn
%O 1,2
%A Luc Stevens (lms022(AT)yahoo.com), Apr 28 2006
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