# A151337 (b-file synthesized from sequence entry) 0 1 1 0 2 0 3 1 4 2 5 1 6 11 7 27 8 60 9 216 10 724 11 1976 12 7140 13 23723 14 78257 15 273707 16 965000 17 3354664 18 12105626 19 43619606 20 158328834 21 581558532 22 2150453882 23 7986765356 24 29926146152 25 112632743114 26 426211686362 27 1621337531160 28 6195825999752 29 23775419983051 30 91628399336871 31 354427790698043 32 1375944479482008 33 5359864838951956