# A372021 (b-file synthesized from sequence entry) 0 1 1 2 2 2 3 10 4 18 5 90 6 210 7 1010 8 2754 9 12754 10 38626 11 173434 12 566034 13 2481578 14 8556722 15 36848994 16 132406274 17 562781730 18 2086628034 19 8786281322 20 33372861074 21 139609461370 22 540319600530 23 2250413871698 24 8838703576002 25 36709888093938 26 145870057771938