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A365163
Length of the perimeter of the regular heptagon with unit circumradius.
2
6, 0, 7, 4, 3, 7, 2, 3, 4, 7, 6, 4, 5, 8, 1, 3, 6, 8, 6, 6, 6, 0, 7, 5, 6, 6, 5, 9, 8, 7, 7, 0, 2, 2, 5, 6, 4, 5, 3, 9, 8, 7, 0, 1, 8, 9, 0, 2, 4, 4, 3, 8, 2, 7, 0, 2, 2, 3, 6, 6, 2, 2, 4, 9, 4, 5, 0, 8, 4, 5, 5, 2, 3, 1, 4, 4, 7, 7, 7, 9, 0, 1, 2, 9, 0, 9, 7, 6, 3, 0, 4, 8
OFFSET
1,1
FORMULA
Equals 7*A272487.
EXAMPLE
6.0743723476458136866607566598...
MATHEMATICA
f[R_, s_] := 2*R*s*Sin[Pi/s]; a[n_] := RealDigits[f[1, 7], 10, n][[1]]; a[92] (* Robert P. P. McKone, Aug 24 2023 *)
CROSSREFS
Cf. A019845 (5-gon), A010487 (4-gon), A365164 (8-gon), A365165 (9-gon), A272487 (edge length), A104957 (area).
Sequence in context: A351401 A273413 A341906 * A195432 A196915 A374407
KEYWORD
nonn,cons
AUTHOR
R. J. Mathar, Aug 24 2023
STATUS
approved