# A045705 (b-file synthesized from sequence entry) 1 2 2 5 3 17 4 31 5 449 6 521 7 953 8 39313 9 187111 10 974177 11 2989009 12 45804529 13 53603369 14 226981169 15 540660521 16 961504807 17 2149991549 18 5631736609 19 17253512729 20 18074736353 21 38580197099 22 101003831729 23 1311494070977 24 101503242568393