# A335506 (b-file synthesized from sequence entry) 0 1 1 5 2 25 3 125 4 625 5 3125 6 15625 7 8125 8 40625 9 203125 10 1015625 11 508125 12 2540625 13 1203125 14 6015625 15 3008125 16 15040625 17 5203125 18 26015625 19 13008125 20 65040625 21 325203125 22 1626015625 23 813008125 24 4065040625 25 20325203125 26 101626015625 27 50813008125 28 254065040625