# A050565 (b-file synthesized from sequence entry) 1 1 2 3 3 7 4 15 5 43 6 57 7 61 8 75 9 145 10 217 11 247 12 2803 13 3403 14 4375 15 5113 16 9883 17 14565 18 17397 19 65977 20 82081 21 92517 22 214453 23 248055 24 369535 25 969795