Number of self-avoiding polygons on the 2-dimensional square lattice with perimeter 2n with at most 4 horizontal edges in each vertical cross-section.
A060379
Number of self-avoiding polygons on the 2-dimensional square lattice with perimeter 2n with at most 4 horizontal edges in each vertical cross-section.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =28a(4) =124a(5) =588a(6) =2938a(7) =15266a(8) =81770a(9) =448698a(10) =2510813a(11) =14277838a(12) =82286365a(13) =479610362a(14) =2822332127a(15) =16745262798
External references
- oeis: A060379