A138848 -id:A138848 - cp's OEIS frontend

A138895 Triangle read by rows: T(n,k) = A092892(n-k) for 0 <= k <= n.

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, 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, 2, 1

Offset: 0

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Paul Barry, Apr 02 2008

easy
nonn
tabl

Matrix in Toeplitz form related to the Collatz (3x + 1) algorithm.

Row sums are A138847. Antidiagonal sums are A138848.

			Triangle begins
   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,  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,  2,  1;
  ...

Cf. A092892 (1st column), A138847, A138848.

Edited by Georg Fischer, Jul 28 2023

cp's OEIS Frontend

A138895 Triangle read by rows: T(n,k) = A092892(n-k) for 0 <= k <= n.

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