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A056633
a(n) is the total squared perimeter of all self-avoiding polygons of area n on the square lattice.
1
16, 72, 384, 1864, 8720, 40064, 180992, 805416, 3542720, 15437280, 66739168, 286614344, 1223894208, 5200593136, 22003683264, 92745730384, 389613088944, 1631810452416, 6816075114112, 28401442383848
OFFSET
1,1
LINKS
I. Jensen, Table of n, a(n) for n = 1..40 (from link below)
I. Jensen, More terms
CROSSREFS
Sequence in context: A279905 A146748 A029872 * A248464 A232572 A363794
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Aug 30 2000
EXTENSIONS
Title clarified by Sean A. Irvine, Apr 26 2022
STATUS
approved