A377787 - OEIS

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A377787

Decimal expansion of 30*arctan(2).

3, 3, 2, 1, 4, 4, 6, 1, 5, 3, 3, 8, 2, 2, 7, 1, 5, 0, 9, 0, 5, 1, 1, 9, 6, 3, 8, 0, 5, 3, 5, 6, 1, 1, 1, 2, 0, 2, 1, 0, 1, 4, 2, 9, 3, 6, 2, 0, 4, 2, 9, 7, 9, 4, 0, 0, 2, 9, 6, 1, 7, 6, 2, 2, 3, 0, 1, 1, 3, 1, 0, 1, 6, 9, 3, 2, 0, 8, 8, 3, 8, 2, 0, 4, 0, 2, 5, 1, 3, 8, 6, 0, 5, 8, 5, 1, 1, 9, 2, 4

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OFFSET

2,1

COMMENTS

Dehn invariant of the unit truncated icosahedron and Dehn invariant (negated) of the unit regular dodecahedron.

LINKS

Table of n, a(n) for n=2..101.

Eric Weisstein's World of Mathematics, Dehn Invariant.

Eric Weisstein's World of Mathematics, Regular Dodecahedron.

Eric Weisstein's World of Mathematics, Truncated Icosahedron.

Index entries for transcendental numbers

EXAMPLE