A267381 - OEIS

%I #13 Jan 28 2016 19:18:14

%S 2,1,4,33,1621,3615901,18001725286324,447860502903416190825363096,

%T 277857758101409322438325757171462539621726973493284684

%N Positions of first occurrence of 2,3,4, ... in A267380.

%C Not currently known to be an infinite sequence.

%C If A094186(n) = A094186(n+1) = ... = A094186(n+m) = 0, then A094186(N) = A094186(N+1) = ... = A094186(N+m+1) = 0, where N = 2 + (n + m) * (n + m + 1) / 2 - m. So, this sequence is infinite. - _Hiroaki Yamanouchi_, Jan 19 2016

%H Hiroaki Yamanouchi, <a href="/A267381/b267381.txt">Table of n, a(n) for n = 2..12</a>

%e The first few terms of A267380 are 3,2,3,4,... so 2 occurs first at position 2; 3 occurs first at position 1; 4 occurs first at position 4; etc.

%Y Cf. A267380.

%K nonn

%O 2,1

%A _Jeffrey Shallit_, Jan 13 2016

%E a(7)-a(10) from _Hiroaki Yamanouchi_, Jan 16 2016