cp's OEIS Frontend

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.

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A113730 A variant of Golomb's sequence interpreted as a triangle: Start with a(1)=1 as first row, filled from left to right; fill row n+1 with the natural numbers continuing from row n in alternating order, with multiplicity according to the numbers given in row n in alternating order.

Original entry on oeis.org

1, 2, 3, 3, 5, 5, 5, 4, 4, 4, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 11, 38, 38, 38, 38, 38, 38, 37, 37, 37, 37, 37, 37, 36, 36, 36, 36, 36, 36, 35, 35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 32
Offset: 1

Views

Author

Floor van Lamoen and Paul D. Hanna, Nov 08 2005

Keywords

Examples

			The triangle begins
1;
2;
3,3;
5,5,5,4,4,4;
6,6,6,6,6,7,7,7,7,7,8,8,8,8,8,9,9,9,9,10,10,10,10,11,11,11,11;
38,38,38,38,38,38,...,13,12,12,12,12,12,12,12,12,12,12,12;
From row 4 [5,5,5,4,4,4] which was filled from right to left we fill row 4
from left to right with (5) times a 6 and (5) times a 7, (5) times an 8, (4)
times a 9, (4) times a 10 and (4) times an 11.
		

Crossrefs

Cf. A001462 (Golomb's sequence), A113676, A113731, A113734.

A113734 Maximum value in row n of A113730 when interpreted as a triangle.

Original entry on oeis.org

1, 2, 3, 5, 11, 38, 263, 5536, 690168, 1491031071
Offset: 1

Views

Author

Floor van Lamoen and Paul D. Hanna, Nov 08 2005

Keywords

Crossrefs

Showing 1-2 of 2 results.