Problem 44321. Van Eck's Sequence's nth member

Created by Mehmet OZC

Solve Later

Return the Van Eck's Sequence's nth member.

For detailed info : OEIS link and here

 seq = 0, 0, 1, 0, 2, 0, 2, 2, 1, 6, 0, 5...

First member is 0;

Second member is 0;

third member is 1 etc

Solve

Solution Stats

Last solution submitted on Sep 14, 2019

Last 200 Solutions

Problem Comments

1 Comment

1 Comment

Huajie Zheng on 23 Oct 2018

interesting

Solution Comments

Solution 1427667

1 Comment

1 Comment

Simone Sabbatini on 29 Jan 2018

I don't understand why in my Matlab software it works for all the x while here it falis for x>=11

function result = VanEcksSequence(n)
A=0;
for i=1:n
if i==1
A(i+1)=0;
else
[C Chigh]=ismember(A(i),A(1:i-1));
if not(Chigh==0)
A(i+1)=i-Chigh;
else
A(i+1) = 0;
end
end
end
result = A(n);
end

Problem 44321. Van Eck's Sequence's nth member

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Recent Solvers258

Suggested Problems

More from this Author57

Tags

Problem 44321. Van Eck's Sequence's nth member

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Recent Solvers258

Suggested Problems

More from this Author57

Tags

Players