A143446 - OEIS

%I #8 Jun 05 2023 07:07:29

%S 1,0,2,-1,2,4,-1,0,4,8,-2,0,4,8,16,-1,-2,0,8,16,32,-2,-2,0,8,16,32,64,

%T -2,-2,0,0,16,32,64,128,-2,-2,-4,0,16,32,64,128,256,-1,-4,-4,0,0,32,

%U 64,128,256,512,-2,-4,-4,0,0,32,64,128,256,512,1024,-2,-2,-4,-8,0,0,64,128,256,512,1024,2048

%N Triangle read by rows: A000012 * A143424.

%C Row sums = A085945: (1, 2, 5, 11, 26, 53, 116, ...).

%e First few rows of the triangle:

%e    1;

%e    0,  2;

%e   -1,  2,  4;

%e   -1,  0,  4,  8;

%e   -2,  0,  4,  8, 16;

%e   -1, -2,  0,  8, 16, 32;

%e   -2, -2,  0,  8, 16, 32, 64;

%e   ...

%Y Cf. A085945, A143424.

%K tabl,sign

%O 1,3

%A _Gary W. Adamson_, Aug 15 2008

%E a(37) = -2 corrected and more terms from _Georg Fischer_, Jun 05 2023