# A016796 (b-file synthesized from sequence entry) 0 256 1 390625 2 16777216 3 214358881 4 1475789056 5 6975757441 6 25600000000 7 78310985281 8 208827064576 9 500246412961 10 1099511627776 11 2251875390625 12 4347792138496 13 7984925229121 14 14048223625216 15 23811286661761 16 39062500000000 17 62259690411361 18 96717311574016 19 146830437604321