# A077092 (b-file synthesized from sequence entry) 1 0 2 4 3 24 4 8064 5 34944 6 35520 7 38880 8 69480 9 268560 10 420096 11 1054944 12 2946560 13 3054080 14 5660160 15 6621120 16 9768960 17 10264320 18 25885760 19 29062656 20 33933312 21 36484992 22 38707200 23 78532608 24 163418112 25 260601600 26 458987520 27 4044349440