# A337207 (b-file synthesized from sequence entry) 1 1 2 5 3 15 4 41 5 107 6 273 7 707 8 1817 9 4617 10 11867 11 30425 12 76857 13 197603 14 505871 15 1275465 16 3276563 17 8406527 18 21165273 19 54338627 20 139513379 21 351447657 22 901789811 23 2304725075 24 5840498937 25 14978318243 26 38107010435 27 97141424265 28 248995117523 29 630641012147