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Search: id:A068898
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| A068898 |
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Triangular numbers containing 2n digits in which the sum of the first n digits = that of the rest. |
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+0
2
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| 55, 66, 2415, 3003, 5050, 5151, 5995, 8778, 9045, 113050, 171405, 174345, 177906, 183921, 198765, 203203, 216153, 219453, 234270, 237705, 239086, 252405, 255255, 275653, 279378, 284635
(list; graph; listen)
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