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A246773
Decimal expansion of 'v', an auxiliary constant associated with the asymptotic number of row-convex polyominoes.
2
3, 2, 0, 5, 5, 6, 9, 4, 3, 0, 4, 0, 0, 5, 9, 0, 3, 1, 1, 7, 0, 2, 0, 2, 8, 6, 1, 7, 7, 8, 3, 8, 2, 3, 4, 2, 6, 3, 7, 7, 1, 0, 8, 9, 1, 9, 5, 9, 7, 6, 9, 9, 4, 4, 0, 4, 7, 0, 5, 5, 2, 2, 0, 3, 5, 5, 1, 8, 3, 4, 7, 9, 0, 3, 5, 9, 1, 6, 7, 4, 6, 9, 1, 7, 6, 4, 1, 8, 2, 6, 9, 5, 7, 8, 0, 5, 2, 5, 0, 7, 8, 4, 9, 9
OFFSET
1,1
COMMENTS
Essentially the same digit sequence as A137421. - R. J. Mathar, Sep 06 2014
FORMULA
v = first root of x^3 - 5*x^2 + 7*x - 4 = (x-2)^3+(x-2)^2-(x-2)-2.
A001169(n) ~ u*v^n, where u = A246772.
EXAMPLE
3.20556943040059031170202861778382342637710891959769944...
MATHEMATICA
v = Root[x^3 - 5*x^2 + 7*x - 4, x, 1]; RealDigits[v, 10, 104] // First
CROSSREFS
KEYWORD
nonn,cons,easy
AUTHOR
STATUS
approved