Concatenation of sequence (2n-1,2n-3,..,3,1,3,..,2n-3,2n-1).
A287294
Concatenation of sequence (2n-1,2n-3,..,3,1,3,..,2n-3,2n-1).
Terms
- a(0) =1a(1) =313a(2) =53135a(3) =7531357a(4) =975313579
External references
- oeis: A287294
A287294
Concatenation of sequence (2n-1,2n-3,..,3,1,3,..,2n-3,2n-1).