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%I #6 Apr 17 2022 22:21:48
%S 1,5,12,21,36,51,71,94,123,150,188,223,263,310,359,409,465,523,586,
%T 653,726,795,878,954,1038,1131,1222,1314,1419,1522,1626,1739,1854,
%U 1970,2101,2220,2347,2484,2627,2760,2913,3059,3214,3367,3524,3688,3861,4028,4200
%N Number of distinct values of the sum of i*(i-1) over 4 realizations of i in 0..n.
%C Row 4 of A225281.
%H R. H. Hardin, <a href="/A225284/b225284.txt">Table of n, a(n) for n = 1..390</a>
%Y Cf. A225281.
%K nonn
%O 1,2
%A _R. H. Hardin_, May 04 2013
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