# A276978 (b-file synthesized from sequence entry) 1 1 2 1 3 8 4 16 5 243 6 729 7 16384 8 65536 9 1953125 10 9765625 11 362797056 12 2176782336 13 96889010407 14 678223072849 15 35184372088832 16 281474976710656 17 16677181699666569 18 150094635296999121 19 10000000000000000000 20 100000000000000000000 21 7400249944258160101211