# A276280 (b-file synthesized from sequence entry) 0 1 1 9 2 45 3 173 4 567 5 1654 6 4422 7 11040 8 26051 9 58638 10 126778 11 264670 12 535806 13 1055480 14 2028884 15 3814688 16 7029559 17 12717703 18 22622719 19 39618458 20 68384638 21 116456100 22 195837008 23 325462408 24 534921468 25 870044724 26 1401226327 27 2235733481 28 3535790660