The number of n-digit numbers requiring 2 nonzero squares in their representation as sum of squares.
A180426
The number of n-digit numbers requiring 2 nonzero squares in their representation as sum of squares.
Terms
- a(0) =3a(1) =30a(2) =265a(3) =2351a(4) =21062a(5) =191630a(6) =1766955a(7) =16465551a(8) =154749588a(9) =1464326721a(10) =13932672360a(11) =133165432342
External references
- oeis: A180426