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A117404 Triangular numbers for which the sum of the digits is a square. +0
1
0, 1, 10, 36, 153, 171, 351, 630, 1035, 1431, 2016, 3240, 3321, 4005, 8001, 10440, 13041, 13203, 16110, 21321, 23220, 25200, 67896, 89676, 101025, 105111, 114003, 186966, 187578, 198765, 222111, 239778, 279378, 292995, 299925, 320400, 321201 (list; graph; listen)
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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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