# A064564 (b-file synthesized from sequence entry) 1 18 2 1152 3 28125 4 73728 5 4718592 6 301989888 7 439453125 8 19327352832 9 1236950581248 10 6866455078125 11 79164837199872 12 5066549580791808 13 107288360595703125 14 324259173170675712 15 20752587082923245568