# A093759 (b-file synthesized from sequence entry) 2 8 3 32 4 256 5 512 6 7168 7 16384 8 65536 9 1441792 10 3407872 11 1048576 12 33554432 13 7985954816 14 2550136832 15 20401094656 16 4294967296 17 197568495616 18 1975684956160 19 343597383680 20 42331197669376 21 95657511616512