# A287485 (b-file synthesized from sequence entry) 1 2 2 20 3 68 4 304 5 1232 6 5168 7 21408 8 89088 9 370112 10 1538560 11 6394368 12 26577664 13 110464512 14 459127808 15 1908282368 16 7931445248 17 32965660672 18 137016012800 19 569483091968 20 2366956929024 21 9837842644992 22 40889273090048 23 169949115056128 24 706363785412608 25 2935877583634432 26 12202461910794240