a(n,m) tabl head (triangle) for A093565 n\m 0 1 2 3 4 5 6 7 8 9 0 1 0 0 0 0 0 0 0 0 0 1 8 1 0 0 0 0 0 0 0 0 2 8 9 1 0 0 0 0 0 0 0 3 8 17 10 1 0 0 0 0 0 0 4 8 25 27 11 1 0 0 0 0 0 5 8 33 52 38 12 1 0 0 0 0 6 8 41 85 90 50 13 1 0 0 0 7 8 49 126 175 140 63 14 1 0 0 8 8 57 175 301 315 203 77 15 1 0 9 8 65 232 476 616 518 280 92 16 1 etc. Written as array for figurate numbers (without first column) based on [1,9,17,25,33,,..]= A017077: n\m 1 2 3 4 5 6 7 8 9 10 1 1 1 1 1 1 1 1 1 1 1 2 9 10 11 12 13 14 15 16 17 18 3 17 27 38 50 63 77 92 108 125 143 4 25 52 90 140 203 280 372 480 605 748 5 33 85 175 315 518 798 1170 1650 2255 3003 6 41 126 301 616 1134 1932 3102 4752 7007 10010 7 49 175 476 1092 2226 4158 7260 12012 19019 29029 8 57 232 708 1800 4026 8184 15444 27456 46475 75504 9 65 297 1005 2805 6831 15015 30459 57915 104390 179894 10 73 370 1375 4180 11011 26026 56485 114400 218790 398684 etc.