# A001889 (b-file synthesized from sequence entry) 2 1 3 4 4 8 5 38 6 209 7 1400 8 10849 9 95516 10 938441 11 10179149 12 120748974 13 1554688240 14 21588485677 15 321561688748 16 5113709884902 17 86469576394028 18 1549114961438599 19 29309613834899864 20 583986501706555597 21 12222118836543561940 22 268060239251978779839 23 6148136982942476816891