# A351128 (b-file synthesized from sequence entry) 0 0 1 1 2 0 3 1 4 8 5 49 6 280 7 1649 8 10800 9 81505 10 696400 11 6472033 12 63562872 13 652984977 14 7026210728 15 79547049681 16 949709767904 17 11936248012993 18 157219119485216 19 2159448120457409 20 30811324011852136 21 455635009201780977 22 6975424580445456056 23 110478282815356437809