A136741 Diagonal of square array A136737, one place above the main diagonal.
1, 3, 22, 250, 3810, 72492, 1649634, 43626510, 1313526375, 44332221175, 1657043432088, 67929461003560, 3029864359322346, 146058681728370600, 7566706624571096610, 419220650458638848514, 24733868801871384287055
Offset: 0