A049729 a(n)=T(n,n+1), array T as in A049723.
4, 13, 26, 46, 75, 104, 148, 189, 241, 302, 363, 439, 508, 596, 681, 774, 886, 991, 1107, 1224, 1344, 1489, 1622, 1778, 1919, 2083, 2248, 2409, 2605, 2774, 2970, 3163, 3356, 3572, 3785, 4009, 4246, 4474, 4719, 4948, 5220, 5477
Offset: 0