A168215 Numbers H(n) where H(2*n)/H(2*n-1) is composed with n times 0-9 and it's the closest number to Pi.

27346, 85910, 1916478335, 6020794258, 225843133696748, 709507129685401

Offset

2,1

Comments

H(3),H(4) was provided by medie2005,mathe,zgg__ H(5),H(6) was provided by mathe Ref: http://topic.csdn.net/u/20070825/21/2e2f6348-b0f8-46cb-a52b-582af245141a.html

Links

Table of n, a(n) for n=2..7.

Example

H(3)=1916478335 H(4)=6020794258 Means H(4)/H(3) and=3.1415926535897939070623514249119 is the closest number to Pi. H(4) & H(3) were composed with 2 times 0-9 digits.

Prog

(C) Provided by mathe in floor 92# of webpage: http://topic.csdn.net/u/20070825/21/2e2f6348-b0f8-46cb-a52b-582af245141a.html

Crossrefs

Sequence in context: A328214 A234686 A064967 * A224626 A237296 A166224

Adjacent sequences: A168212 A168213 A168214 * A168216 A168217 A168218

Keyword

hard,nonn,uned

Author

Zhining Yang, Nov 20 2009

Status

approved