OFFSET
1,3
LINKS
Robert Shrock and F. Y. Wu, Spanning Trees on Graphs and Lattices in d Dimensions pp. 21-25.
Wikipedia, Trihexagonal tiling [Kagomé lattice]
FORMULA
EXAMPLE
1.1356964017751025237602199706665780810280666320286465955...
MATHEMATICA
H = Sqrt[3]/(6*Pi)*PolyGamma[1, 1/6] - Pi/Sqrt[3] - Log[6]; RealDigits[(1/3)*(2*Log[2] + 2*Log[3] + H), 10, 103] // First
CROSSREFS
KEYWORD
AUTHOR
Jean-François Alcover, Jul 31 2014
STATUS
approved