A036397 Coefficients of cluster series for site percolation problem on triangular lattice with 1st, 2nd and 3rd neighbor bonds.
1, 18, 144, 966, 6042
Offset: 0
References
- J. W. Essam, Percolation and cluster size, in C. Domb and M. S. Green, Phase Transitions and Critical Phenomena, Ac. Press 1972, Vol. 2; see especially pp. 225-226.
Extensions
Name clarified by Andrey Zabolotskiy, Mar 04 2021
a(0) from Pontus von Brömssen, May 21 2025