# A052877 (b-file synthesized from sequence entry) 0 0 1 2 2 3 3 7 4 27 5 151 6 1083 7 9367 8 94587 9 1091671 10 14174523 11 204495127 12 3245265147 13 56183135191 14 1053716696763 15 21282685940887 16 460566381955707 17 10631309363962711 18 260741534058271803 19 6771069326513690647