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Triangle read by rows, A127446 * A000012, 1<=k<=n.
2

%I #11 Jul 05 2023 04:33:25

%S 1,4,2,6,3,3,12,8,4,4,10,5,5,5,5,24,18,12,6,6,6,14,7,7,7,7,7,7,32,24,

%T 16,16,8,8,8,8,27,18,18,9,9,9,9,9,9,40,30,20,20,20,10,10,10,10,10,22,

%U 11,11,11,11,11,11,11,11,11,11,72,60,48,36,24,24,12,12,12,12,12,12

%N Triangle read by rows, A127446 * A000012, 1<=k<=n.

%C Given triangle A127446, partial sums of terms starting from the right.

%C Row sums give A064987.

%C Left column is A038040.

%e First few rows of the triangle =

%e 1;

%e 4, 2;

%e 6, 3, 3;

%e 12, 8, 4, 4;

%e 10, 5, 5, 5, 5;

%e 24, 18, 12, 6, 6, 6;

%e 14, 7, 7, 7, 7, 7, 7;

%e Row 4 = (12, 8, 4, 4) since row 4 of triangle A127446 = (4, 4, 0, 4).

%Y Cf. A038040, A064987, A127446.

%K nonn,tabl,less

%O 1,2

%A _Gary W. Adamson_, Aug 06 2008

%E a(56) corrected by _Georg Fischer_, Jul 04 2023