# A032418 (b-file synthesized from sequence entry) 1 3 2 27 3 39 4 83 5 203 6 395 7 467 8 875 9 1979 10 6939 11 13623 12 22835 13 56307 14 81839 15 197783 16 224879 17 261147 18 523283 19 533043 20 2457639