A056632 a(n) is the total perimeter of all self-avoiding polygons of area n on the square lattice.

4, 12, 48, 188, 740, 2936, 11672, 46388, 184352, 732608, 2911040, 11565964, 45949600, 182538264, 725108640, 2880270032, 11440564516, 45441048384, 180483666608, 716832688844, 2847012624636, 11307166941460

Offset: 1

Author

N. J. A. Sloane, Aug 30 2000

Keywords

• nonn

Links

• I. Jensen, Table of n, a(n) for n = 1..40 (from link below)
• I. Jensen, More terms

Crossrefs

Cf. A002931, A056625.

Extensions

Title clarified by Sean A. Irvine, Apr 26 2022