Number of Langford pairings of order n, as n runs through the positive numbers congruent to -1 or 0 mod 4.
A192289
Number of Langford pairings of order n, as n runs through the positive numbers congruent to -1 or 0 mod 4.
Terms
- a(0) =1a(1) =1a(2) =26a(3) =150a(4) =17792a(5) =108144a(6) =39809640a(7) =326721800a(8) =256814891280
External references
- oeis: A192289