# A057008 (b-file synthesized from sequence entry) 1 1 2 31 3 1361 4 334576 5 207009649 6 268530771271 7 644969015852641 8 2642258726261312896 9 17337468317813249073281 10 173383832437017181584973783 11 2538593496477071922439308897841 12 52641334467700181691498204296713016 13 1503509056221581488501100896035227575441