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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A155727 Production matrix of the Jacobsthal numbers, read by row.

Original entry on oeis.org

0, 1, 3, -1, 1, 5, 0, -1, 1, 7, 0, 0, -1, 1, 9, 0, 0, 0, -1, 1, 11, 0, 0, 0, 0, -1, 1, 13, 0, 0, 0, 0, 0, -1, 1, 15, 0, 0, 0, 0, 0, 0, -1, 1, 17, 0, 0, 0, 0, 0, 0, 0, -1, 1
Offset: 0

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Author

Paul Barry, Jan 25 2009

Keywords

Comments

The matrix generated by the matrix has row sums A001045(n+1).

Examples

			Matrix begins
   0, 1,
   3, -1, 1,
   5, 0, -1, 1,
   7, 0, 0, -1, 1,
   9, 0, 0, 0, -1, 1,
  11, 0, 0, 0, 0, -1, 1,
  13, 0, 0, 0, 0, 0, -1, 1,
  15, 0, 0, 0, 0, 0, 0, -1, 1,
  17, 0, 0, 0, 0, 0, 0, 0, -1, 1
		

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