# A056259 (b-file synthesized from sequence entry) 1 1 2 3 3 9 4 19 5 21 6 57 7 73 8 81 9 207 10 349 11 421 12 3811 13 3981 14 20923 15 23785 16 38851 17 56041 18 68503 19 74433