a(n) = floor[X/Y] where X = the concatenation of the first n even numbers in increasing order and Y = their sum.
A067121
a(n) = floor[X/Y] where X = the concatenation of the first n even numbers in increasing order and Y = their sum.
Terms
- a(0) =1a(1) =4a(2) =20a(3) =123a(4) =8227a(5) =587643a(6) =44073235a(7) =3427918353a(8) =274233468240
External references
- oeis: A067121