# A068113 (b-file synthesized from sequence entry) 0 1 1 3 2 5 3 7 4 11 5 143 6 221 7 323 8 7429 9 437 10 667 11 20677 12 899 13 33263 14 1363783 15 2022161 16 3065857 17 3065857 18 162490421 19 4391633 20 259106347 21 385499687 22 8965109 23 600662303 24 907383479 25 66238993967 26 66238993967 27 98733594781 28 8194888366823