A291970 Triangle read by rows: T(n,k) = 2 * T(n-k,k-1) + T(n-k,k) with T(0,0) = 1 for 0 <= k <= A003056(n).

1, 0, 2, 0, 2, 0, 2, 4, 0, 2, 4, 0, 2, 8, 0, 2, 8, 8, 0, 2, 12, 8, 0, 2, 12, 16, 0, 2, 16, 24, 0, 2, 16, 32, 16, 0, 2, 20, 40, 16, 0, 2, 20, 56, 32, 0, 2, 24, 64, 48, 0, 2, 24, 80, 80, 0, 2, 28, 96, 96, 32, 0, 2, 28, 112, 144, 32, 0, 2, 32, 128, 176, 64, 0, 2, 32

Offset: 0

Author

Seiichi Manyama, Sep 07 2017

Keywords

• nonn
• tabf
• look

Examples

			First few rows are:
  1;
  0, 2;
  0, 2;
  0, 2,  4;
  0, 2,  4;
  0, 2,  8;
  0, 2,  8,  8;
  0, 2, 12,  8;
  0, 2, 12, 16;
  0, 2, 16, 24;
  0, 2, 16, 32, 16.
		

Links

• Seiichi Manyama, Rows n = 0..481, flattened

Crossrefs

Row sums give A032302.

Columns 0-1 give A000007, A007395.

Cf. A008289 (m=1), this sequence (m=2), A291971 (m=3).