# A112840 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 1 5 2 6 3 7 7 8 11 9 28 10 51 11 154 12 389 13 1556 14 4833 15 22477 16 80532 17 440512 18 1916580 19 13388593 20 73763989 21 632754664 22 4175659899 23 42606281476 24 336819337955 25 4181786155008 26 40981322633555 27 630857431556758 28 7576627032674784