%I #12 Jul 29 2023 03:01:39
%S 1,2,1,4,2,1,8,4,2,1,5,8,4,2,1,3,5,8,4,2,1,6,3,5,8,4,2,1,12,6,3,5,8,4,
%T 2,1,24,12,6,3,5,8,4,2,1,17,24,12,6,3,5,8,4,2,1,11,17,24,12,6,3,5,8,4,
%U 2,1
%N Triangle read by rows: T(n,k) = A092892(n-k) for 0 <= k <= n.
%C Matrix in Toeplitz form related to the Collatz (3x + 1) algorithm.
%C Row sums are A138847. Antidiagonal sums are A138848.
%e Triangle begins
%e 1;
%e 2, 1;
%e 4, 2, 1;
%e 8, 4, 2, 1;
%e 5, 8, 4, 2, 1;
%e 3, 5, 8, 4, 2, 1;
%e 6, 3, 5, 8, 4, 2, 1;
%e 12, 6, 3, 5, 8, 4, 2, 1;
%e 24, 12, 6, 3, 5, 8, 4, 2, 1;
%e 17, 24, 12, 6, 3, 5, 8, 4, 2, 1;
%e 11, 17, 24, 12, 6, 3, 5, 8, 4, 2, 1;
%e ...
%Y Cf. A092892 (1st column), A138847, A138848.
%K easy,nonn,tabl
%O 0,2
%A _Paul Barry_, Apr 02 2008
%E Edited by _Georg Fischer_, Jul 28 2023
|