# A137634 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 1 4 4 5 10 6 1 7 6 8 19 9 46 10 1 11 8 12 32 13 94 14 226 15 1 16 10 17 49 18 170 19 474 20 1136 21 1 22 12 23 70 24 282 25 899 26 2431 27 5810 28 1 29 14 30 95 31 438 32 1577 33 4764 34 12609 35 30080 36 1 37 16 38 124 39 646 40 2600 41 8701 42 25318 43 65972 44 157162 45 1 46 18 47 157 48 914 49 4076 50 15000 51 47682 52 134964 53 347524 54 826992