A091742 Second column (m=1) of triangle A060063.
1, 26, 775, 32516, 1894429, 148008446, 15005570563, 1920091871816, 303034557325177, 57867367557774626, 13156672434190398271, 3513034745241511676876, 1088776741031904909773845
Offset: 1
Formula
a(n)= A060063(n, 1), n>=1.