Factorial splitting: write n! = x*y*z with x <= y <= z and minimal z-x; sequence gives value of y.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =5a(6) =9a(7) =18a(8) =35a(9) =72a(10) =160a(11) =350a(12) =770a(13) =1848a(14) =4455a(15) =10920a(16) =27648a(17) =70720a(18) =185895a(19) =496125a(20) =1344000a(21) =3706560a(22) =10395840a(23) =29568000a(24) =85299200a(25) =249356800a(26) =738840960a(27) =2216522880a(28) =6730407936a(29) =20678434920