# A352914 (b-file synthesized from sequence entry) 0 1 1 2 2 10 3 74 4 676 5 7592 6 97024 7 1416200 8 23015248 9 412777952 10 8090869984 11 171435904928 12 3908548404160 13 95264270043776 14 2470715015425024 15 67913132377486208 16 1971038886452490496 17 60212661838223997440 18 1930529043247940342272 19 64801071784954698480128