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A245737
Decimal expansion of z_hc, the bulk limit of the number of spanning trees on a honeycomb lattice.
3
8, 0, 7, 6, 6, 4, 8, 6, 8, 0, 4, 8, 6, 2, 6, 2, 8, 5, 2, 3, 4, 0, 9, 1, 2, 7, 6, 8, 0, 9, 5, 1, 5, 9, 8, 5, 1, 8, 0, 6, 0, 4, 6, 0, 1, 9, 5, 1, 4, 6, 7, 5, 4, 0, 3, 2, 7, 1, 7, 1, 1, 7, 5, 9, 0, 2, 5, 3, 7, 7, 8, 2, 0, 1, 8, 1, 7, 4, 6, 0, 5, 2, 0, 9, 4, 6, 9, 0, 2, 2, 7, 2, 3, 4, 2, 8, 4, 8, 0, 1, 8, 3, 7
OFFSET
0,1
FORMULA
(1/2)*(log(2) + log(3) + H), where H is the auxiliary constant A242967.
EXAMPLE
0.8076648680486262852340912768095159851806046019514675403271711759...
MATHEMATICA
H = Sqrt[3]/(6*Pi)*PolyGamma[1, 1/6] - Pi/Sqrt[3] - Log[6]; RealDigits[(1/2)*(Log[2] + Log[3] + H), 10, 103] // First
CROSSREFS
Cf. A218387(z_sq), A242967(H), A245725(z_tri).
Sequence in context: A165268 A306071 A201321 * A198221 A183001 A262522
KEYWORD
nonn,cons,easy
AUTHOR
STATUS
approved