Consider the line segment in R^n from the origin to the point v = (1,4,9,...,n^2); let d = squared distance to this line from the closest point of Z^n (excluding the endpoints). Sequence gives d times v.v.
A060454
Consider the line segment in R^n from the origin to the point v = (1,4,9,...,n^2); let d = squared distance to this line from the closest point of Z^n (excluding the endpoints). Sequence gives d times v.v.
Terms
- a(0) =1a(1) =6a(2) =38a(3) =107a(4) =350a(5) =728a(6) =1752a(7) =3090a(8) =6215a(9) =9878a(10) =17654a(11) =26117a(12) =42924a(13) =60256a(14) =93024a(15) =125460a(16) =184509a(17) =241110a(18) =341110a(19) =434511a(20) =595562a(21) =742808a(22) =991640a(23) =1215110a(24) =1586403a(25) =1914822a(26) =2452646a(27) =2922185a(28) =3681560a(29) =4337024
External references
- oeis: A060454