# A179957 (b-file synthesized from sequence entry) 0 1 1 1 2 0 3 0 4 0 5 0 6 0 7 0 8 2 9 72 10 1496 11 25384 12 399848 13 6231544 14 99133496 15 1634227958 16 28120703888 17 506599465896 18 9562489659952 19 189055933191880 20 3911226769004280