108144

Appears in sequences

• Number of solutions to Langford (or Langford-Skolem) problem (up to reversal of the order).at n=11A014552
• Number of Langford pairings of order n, as n runs through the positive numbers congruent to -1 or 0 mod 4.at n=5A192289
• Number of independent vertex sets and vertex covers in the n-Hanoi graph.at n=2A288490