W. Lang Nov 09 2007 a(n,m) tabl head (triangle) for A134151 (S2(4)') n\m 1 2 3 4 5 6 7 8 9 10 ... 1 1 0 0 0 0 0 0 0 0 0 2 4 1 0 0 0 0 0 0 0 0 3 28 4 1 0 0 0 0 0 0 0 4 280 44 4 1 0 0 0 0 0 0 5 3640 392 44 4 1 0 0 0 0 0 6 58240 5544 456 44 4 1 0 0 0 0 7 1106560 80640 5992 456 44 4 1 0 0 0 8 24344320 1519840 88256 6248 456 44 4 1 0 0 9 608608000 31420480 1631392 90048 6248 456 44 4 1 0 10 17041024000 766525760 33293120 1661856 91072 6248 456 44 4 1 . . . The first column gives A007559 (3-factorials) [1,4,28,280,3640,58240,1106560,24344320,608608000,17041024000,... ]. The row sums give A134152 = [1,5,33,329,4081,64289,1193697,25959169,641756673,17842602561,...]. The alternating row sums give A134153=[1,3,25,239,3289,53111,1031497,22906903,578734697,16306214743,...]. ####################################### e.o.f. ##########################################################