# A153934 (b-file synthesized from sequence entry) 0 1 1 2 2 2 3 3 4 4 5 7 6 9 7 37 8 44 9 122 10 360 11 837 12 1955 13 11063 14 21562 15 102402 16 455597 17 1800255 18 6701316 19 61868659 20 193623470 21 1467251281 22 10855933316 23 68253791333 24 417351118269 25 6197640479557 26 31389717866283 27 387573069042758