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A171232 Array, T(n,k) = 2*(n/k) - 1, if n mod k = 0; otherwise, T(n,k) = 1. Read by antidiagonals. 1
1, 3, 1, 5, 1, 1, 7, 1, 1, 1, 9, 3, 1, 1, 1, 11, 1, 1, 1, 1, 1, 13, 5, 1, 1, 1, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

T(n,1): continued fraction expansion of coth(1).

T(n,2): continued fraction expansion of tan(1) = cot(pi/2 - 1).

LINKS

Table of n, a(n) for n=1..28.

FORMULA

T(n,k) = A171233(n,k) - A077049(n,k).

EXAMPLE

Array begins

1 1 1 1 1 ...

3 1 1 1 1 ...

5 1 1 1 1 ...

7 3 1 1 1 ...

9 1 1 1 1 ...

.............

CROSSREFS

Cf. T(n, 1) = A005408(n-1), T(n, 2) = A093178(n-1), A171233, A077049.

Sequence in context: A187367 A305444 A002945 * A093423 A227507 A134700

Adjacent sequences:  A171229 A171230 A171231 * A171233 A171234 A171235

KEYWORD

cofr,nonn,tabl

AUTHOR

Ross La Haye, Dec 05 2009

STATUS

approved

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Last modified April 26 08:14 EDT 2019. Contains 322472 sequences. (Running on oeis4.)