A228726 Number a(n) of columns in each row of the irregular triangles in A187800 and A228594.

1, 1, 1, 2, 1, 1, 2, 1, 2, 9, 1, 1, 3, 1, 3, 9, 1, 5, 9, 28, 1, 1, 3, 1, 3, 10, 1, 5, 11, 28, 1, 5, 12, 28

Offset

1,4

Links

Table of n, a(n) for n=1..34.

Example

a(9) = 9 because there are 9 elements in the 9th rows of A187800 and A228594.

Crossrefs

Sequence in context: A153905 A327812 A319093 * A346175 A165357 A346741

Adjacent sequences: A228723 A228724 A228725 * A228727 A228728 A228729

Keyword

nonn

Author

Christopher Hunt Gribble, Aug 31 2013

Status

approved