Number of 4n-step self-avoiding closed paths on first quadrant grid, passing through origin, symmetric about line y = x.
A038393
Number of 4n-step self-avoiding closed paths on first quadrant grid, passing through origin, symmetric about line y = x.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =20a(5) =78a(6) =342a(7) =1608a(8) =7966a(9) =41054a(10) =218342a(11) =1191038a(12) =6635164a(13) =37621952a(14) =216557220a(15) =1262829914a(16) =7447921572
External references
- oeis: A038393