Sum of square divisors of n! = sum of squares of divisors of the square root of largest square dividing n!.
A055928
Sum of square divisors of n! = sum of squares of divisors of the square root of largest square dividing n!.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =5a(4) =5a(5) =210a(6) =210a(7) =850a(8) =7735a(9) =806806a(10) =806806a(11) =3229590a(12) =3229590a(13) =161479500a(14) =1455090000a(15) =23286770000a(16) =23286770000a(17) =838446909300a(18) =838446909300
External references
- oeis: A055928