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A050409 Truncated square pyramid numbers: a(n)=sum(k^2,k=n..2*n). +0
6
0, 5, 29, 86, 190, 355, 595, 924, 1356, 1905, 2585, 3410, 4394, 5551, 6895, 8440, 10200, 12189, 14421, 16910, 19670, 22715, 26059, 29716, 33700, 38025, 42705, 47754, 53186, 59015, 65255, 71920, 79024, 86581, 94605, 103110, 112110, 121619 (list; graph; listen)
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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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