# A371523 (b-file synthesized from sequence entry) 0 1 1 2 2 15 3 142 4 1533 5 17924 6 220936 7 2827218 8 37202580 9 500228562 10 6842899886 11 94931338876 12 1332438761910 13 18887047322030 14 269986427261981 15 3887654399820062 16 56337997080499605 17 821021578186212094 18 12024687038651388155 19 176900548019426869808 20 2612917215947948178941