# A148049 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 3 4 10 5 20 6 58 7 139 8 438 9 1140 10 3418 11 9932 12 30628 13 88108 14 280662 15 840825 16 2681258 17 8069994 18 26491824 19 81571012 20 264345958 21 834289608 22 2744822564 23 8655497466 24 28654030002 25 91833730268 26 305378072266 27 978386996766 28 3289069655984 29 10666263089892 30 35684640821198 31 116837930295941 32 393934299599316