# A048459 (b-file synthesized from sequence entry) 1 2 2 3 3 4 4 5 5 7 6 19 7 25 8 27 9 53 10 59 11 68 12 148 13 176 14 241 15 347 16 441 17 444 18 509 19 844 20 990 21 1607 22 1823 23 2745 24 3244 25 3517 26 3695