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A152988 Sum of proper divisors minus the number of proper divisors of Catalan number A000108(n). +0
4
0, 0, 0, 0, 7, 47, 193, 236, 1579, 4195, 18461, 62143, 275781, 1131909, 7434169, 10522660, 72469339, 268486155, 1442237845, 4284330539, 18146555293, 62021099893, 248289236937, 798007352239, 2832660377605, 11922780595861 (list; graph; listen)
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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.


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