# A149506 (b-file synthesized from sequence entry) 0 1 1 1 2 5 3 11 4 47 5 143 6 599 7 2025 8 8577 9 30813 10 130227 11 487643 12 2080201 13 7947799 14 34171305 15 133054913 16 573451125 17 2267413293 18 9813947025 19 39208267881 20 170253111501 21 686862364999 22 2988364706025 23 12153303057065 24 52998289616957 25 216930771161139 26 947653513891821 27 3902052543886669