[seqfan] Re: A sort of composition

[Heinz, Alois]

It is http://oeis.org/A218482

Best regards, Alois

Am 19.08.2014 03:52, schrieb David Newman:
> Count the number of compositions of n arranged in an array for which each
> row length is less than or equal to the length of the row above it.
> (Similar to a plane partition,but with no restriction that the summands be
> decreasing along rows and columns.)
>
> For example: for 3 there are 8 such compositions
> 3
>
> 2,1
>
> 1,2
>
> 2
> 1
>
> 1
> 2
>
> 1,1,1
>
> 1,1
> 1
>
> 1
> 1
> 1
>
> The first few values that I get are 1,3,8,21,54,137
>
> This matches four sequences in the OEIS, but it doesn't match any of the
> definitions, as far as I can see .  Can someone out there tell me if it's
> the same as one of the matches?