A195773 - OEIS

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A195773

Decimal expansion of arctan(6).

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

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OFFSET

1,2

LINKS

Table of n, a(n) for n=1..100.

FORMULA

From Amiram Eldar, Jun 05 2021: (Start)

Equals Pi/2 - A195774.

Equals arcsin(6/sqrt(37)) = arccos(1/sqrt(37)) = arccot(1/6). (End)

EXAMPLE

arctan(6)=1.40564764938026978095219340199580798810...

MATHEMATICA