Number of binary digits in (2^n)!.

Terms

a(0) =1a(1) =2a(2) =5a(3) =16a(4) =45a(5) =118a(6) =296a(7) =717a(8) =1684a(9) =3876a(10) =8770a(11) =19581a(12) =43251a(13) =94686a(14) =205748a(15) =444255a(16) =954037a(17) =2039137a(18) =4340409a(19) =9205096a(20) =19458756a(21) =41014654a(22) =86223599a(23) =180835794a(24) =378448792a(25) =790452002a(26) =1648012854a(27) =3430243421a(28) =7128922283a(29) =14794715462