# A147558 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 2 5 2 6 3 7 4 8 8 9 8 10 14 11 18 12 29 13 40 14 68 15 88 16 174 17 210 18 344 19 492 20 852 21 1144 22 1962 23 2786 24 4601 25 6704 26 11240 27 16096 28 27738 29 39650 30 64936 31 97108 32 168408 33 236880 34 397110 35 589298 36 979496 37 1459960 38 2421132 39 3604880 40 6086790