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Index of the column where n is located in array A277820: a(n) = 1 + A268389(n).
5

%I #10 Nov 05 2016 07:26:02

%S 1,1,2,1,3,2,1,1,2,3,1,2,1,1,4,1,5,2,1,3,1,1,2,2,1,1,3,1,2,4,1,1,2,5,

%T 1,2,1,1,3,3,1,1,2,1,4,2,1,2,1,1,6,1,2,3,1,1,3,2,1,4,1,1,2,1,3,2,1,5,

%U 1,1,2,2,1,1,4,1,2,3,1,3,1,1,2,1,7,2,1,1,2,4,1,2,1,1,3,2,1,1,3,1,2,6,1,1,4,2,1,3,1,1,2,1,2,3,1,2,1,1,5,4

%N Index of the column where n is located in array A277820: a(n) = 1 + A268389(n).

%C Ordinal transform of A268671.

%H Antti Karttunen, <a href="/A277818/b277818.txt">Table of n, a(n) for n = 1..16384</a>

%H <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a>

%H <a href="/index/Ge#GF2X">Index entries for sequences operating on polynomials in ring GF(2)[X]</a>

%F a(n) = 1 + A268389(n).

%o (Scheme) (define (A277818 n) (+ 1 (A268389 n)))

%Y One more than A268389.

%Y Cf. A277820.

%Y Cf. A268671 for the other index, also A277822.

%K nonn,base

%O 1,3

%A _Antti Karttunen_, Nov 02 2016