# A056063 (b-file synthesized from sequence entry) 0 1 1 4 2 44 3 652 4 11636 5 242816 6 5896200 7 166988876 8 5522663076 9 212691519520 10 9480072152976 11 485032014072352 12 28212945137704000 13 1845697627092687232 14 134276285717364346136 15 10746808538882581859580