# A148258 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 14 5 32 6 109 7 299 8 1072 9 3127 10 11729 11 35401 12 136309 13 432204 14 1667833 15 5450217 16 21494445 17 71211809 18 284075575 19 964076788 20 3856072011 21 13288155655 22 53739173124 23 186975465097 24 760491757821 25 2682528713350 26 10945319508192 27 38953569498274 28 159953903028844 29 573499140666546 30 2362523474331649