# A292028 (b-file synthesized from sequence entry) 1 1 2 64 3 888 4 9472 5 76160 6 556032 7 3605504 8 22224896 9 128471040 10 719708160 11 3874455552 12 20416954368 13 104732426240 14 528985096192 15 2620635217920 16 12831147687936 17 61916622880768 18 296036213981184 19 1399459946692608 20 6566769862901760