# A025248 (b-file synthesized from sequence entry) 1 1 2 0 3 2 4 2 5 2 6 6 7 14 8 26 9 58 10 142 11 326 12 754 13 1826 14 4438 15 10750 16 26378 17 65354 18 162334 19 405046 20 1016546 21 2561074 22 6472550 23 16415086 24 41761786 25 106526810 26 272411054 27 698275622 28 1793763282 29 4617047618 30 11906277750 31 30757124830 32 79582907370 33 206231537770