# A146475 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 1 6 1 7 9 8 15 9 35 10 57 11 245 12 579 13 3057 14 8465 15 49975 16 173815 17 1305505 18 5674409 19 52338659 20 276967501 21 3125019047 22 20455456921 23 286529633207 24 2318729204115