# A075297 (b-file synthesized from sequence entry) 0 0 1 0 2 1 3 1 4 0 5 2 6 3 7 1 8 4 9 8 10 5 11 7 12 20 13 18 14 9 15 47 16 56 17 0 18 103 19 159 20 56 21 206 22 421 23 271 24 356 25 1048