

A089708


a(1) = 1, a(2) = 2, a(n) = a(n1) + d where d is the sum of the absolute differences between all pairs of previous terms.


0



1, 2, 3, 7, 26, 136, 887, 6785, 59116, 576528, 6215729, 73368729, 940718528, 13016462714, 193285275705, 3065510539375, 51713071208774, 924496937994286, 17458742846249615, 347270877144570683, 7256791451501057782
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