# A105944 (b-file synthesized from sequence entry) 0 165 1 4455 2 57915 3 495495 4 3185325 5 16563690 6 73002930 7 281582730 8 972740340 9 3062330700 10 8904315420 11 24168856140 12 61764854580 13 149660993790 14 345855237750 15 766005304350 16 1632800780325 17 3361648665375 18 6705510829875 19 12993932469375 20 24518985616125