# A120359 (b-file synthesized from sequence entry) 1 36 2 3600 3 8100 4 10000 5 26244 6 32400 7 142884 8 202500 9 396900 10 518400 11 656100 12 810000 13 1587600 14 1679616 15 2286144 16 2624400 17 3572100 18 6350400 19 9144576 20 9922500 21 20575296