# A123354 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 3 5 1 6 1 7 6 8 9 9 1 10 1 11 10 12 40 13 27 14 1 15 1 16 15 17 125 18 272 19 81 20 1 21 1 22 21 23 315 24 1625 25 1856 26 243 27 1