A131397 - OEIS

%I #13 Nov 29 2017 03:34:19

%S 3,6,7,9,12,14,15,18,20,22,23,26,28,29,32,33,36,38,40,42,44,45,47,50,

%T 52,54,55,58,60,62,64,66,68,70,72,74,76,79,81,83,85,86,88,90,92,94,96,

%U 98,100,102,104,106,109,110,113,115,116,118,120,122,124,126,128,130,132

%N Positions of negative integers in A131394, minus 1.

%C If A131394 is a permutation of the integers, as conjectured, then A131397 is the complement of A131396.

%H <a href="/A131397/b131397.txt">Table of n, a(n) for n = 1..65</a>

%F a(n) = position of n-th negative integer in A131394, minus 1.

%e The 5th negative integer to occur in A131394 is -5, which occurs at position 13, so that a(5) = 13 - 1 = 12.

%Y Cf. A131388, A131389, A131390, A131391, A131392, A131393, A131394, A131395, A131396.

%K nonn

%O 1,1

%A _Clark Kimberling_, Jul 06 2007