A166126 Decimal expansion of 1/(imaginary part of (15+2*I)^(1/2))^2.

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

Offset

2,2

Comments

lim_{n -> infinity} b(n)/b(n-1) = 1/imag((15+2*I)^(1/2))^2 for b = A154597.

Contribution from Klaus Brockhaus, May 28 2010: (Start)

Also decimal expansion of (15+sqrt(229))/2.

Continued fraction expansion of (15+sqrt(229))/2 is A010854. (End)

Links

Table of n, a(n) for n=2..106.

Example

1/imag((15+2*I)^(1/2))^2 = 15.06637297521077796....

Crossrefs

A154597, A166125 (decimal expansion of sqrt(229)).

Cf. A010854 (all 15's sequence). [From Klaus Brockhaus, May 28 2010]

Sequence in context: A144483 A098403 A353876 * A265011 A320375 A361918

Adjacent sequences: A166123 A166124 A166125 * A166127 A166128 A166129

Keyword

cons,nonn

Author

Klaus Brockhaus, Oct 07 2009

Status

approved