Numbers k such that k! is divisible by the square of (f+d)!^2 for d = 0, 1 and 2 (and possibly larger d), where f = floor(k/2).

A056068

Numbers k such that k! is divisible by the square of (f+d)!^2 for d = 0, 1 and 2 (and possibly larger d), where f = floor(k/2).

Terms

    a(0) =416a(1) =417a(2) =916a(3) =917a(4) =1974a(5) =1975a(6) =2440a(7) =2441a(8) =2910a(9) =2911a(10) =3194a(11) =3195a(12) =3778a(13) =3779a(14) =4024a(15) =4025a(16) =4288a(17) =4289a(18) =4660a(19) =4661a(20) =4954a(21) =4955a(22) =5326a(23) =5327a(24) =5982a(25) =5983a(26) =6706a(27) =6707a(28) =6830a(29) =6831

External references