W. Lang, Oct 12 2007 a(n,m) tabl head (triangle) for A132166, called s1p(7) n\m 1 2 3 4 5 6 7 8 9 10... 1 1 0 0 0 0 0 0 0 0 0 2 21 1 0 0 0 0 0 0 0 0 3 336 42 1 0 0 0 0 0 0 0 4 4536 1113 63 1 0 0 0 0 0 0 5 54432 23184 2331 84 1 0 0 0 0 0 6 598752 412272 65205 3990 105 1 0 0 0 0 7 6158592 6531840 1518048 139860 6090 126 1 0 0 0 8 60046272 94618368 30912840 4010769 256410 8631 147 1 0 0 9 560431872 1274921856 567362016 99302112 8723925 424116 11613 168 1 0 10 5043886848 16176101760 9573741216 2193126624 253790901 16685487 652239 15036 189 1 . . . The first column is A036224: [1,21,336,4536,54432,598752,6158592,60046272,560431872,5043886848,...]. The row sums give A132167= [1,22,379,5713,80032,1080325,14354557,189853438,2511177679,33258000301,...]. The alternating row sums give A132168= [1,20,295,3485,33496,247799,1010905,7422100,238118825,3513857515,...]. ############################################ e.o.f. ##########################################################