# A111586 (b-file synthesized from sequence entry) 0 0 1 1 2 2 3 5 4 12 5 28 6 62 7 136 8 299 9 661 10 1456 11 3213 12 7085 13 15628 14 34467 15 76021 16 167668 17 369805 18 815629 19 1798928 20 3967659 21 8750949 22 19300824 23 42569309 24 93889565 25 207079956 26 456729219 27 1007348005 28 2221775964 29 4900281149 30 10807910301 31 23837596568 32 52575474283 33 115958858869