A303866 Number of noncrossing path sets on 4*n nodes up to rotation with each path having exactly 4 nodes.

1, 3, 36, 960, 35956, 1588192, 77381016, 4031052368, 220584971892, 12535415236272, 734006917110352, 44036846006084336, 2695712407044476920, 167837690527630068192, 10601944003900014217704, 678116169233319969588160, 43848248800067454244195956, 2862607888444933662236506240

Offset: 0

Author

Andrew Howroyd, May 01 2018

Keywords

• nonn

Links

• Andrew Howroyd, Table of n, a(n) for n = 0..200

Crossrefs

Column 4 of A303864.

Cf. A303865, A303867.