# A262278 (b-file synthesized from sequence entry) 0 0 1 2 2 2 3 6 4 10 5 24 6 40 7 92 8 164 9 408 10 704 11 1674 12 3036 13 7002 14 12688 15 29040 16 53034 17 119502 18 219152 19 487924 20 900686 21 1984664 22 3683632 23 8039958 24 15012858 25 32477788 26 60988590 27 130889590 28 247193588 29 526601802 30 999873640 31 2115798292