# A151038 (b-file synthesized from sequence entry) 0 1 1 3 2 9 3 33 4 123 5 459 6 1767 7 6795 8 26397 9 103323 10 404439 11 1591917 12 6274389 13 24780489 14 98110263 15 388610895 16 1541837565 17 6122129877 18 24327902433 19 96767761083 20 385038905697 21 1533118174923 22 6107008497819 23 24335988943143 24 97021648253361 25 386885931518703 26 1543276950241995 27 6157531782523065