login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A112508 Counts the objects described in A047969 and A089246 when grouped by minimum part. (Row sums give A047970). 1

%I

%S 1,1,1,1,1,3,1,1,3,9,1,1,3,9,29,1,1,3,9,29,101

%N Counts the objects described in A047969 and A089246 when grouped by minimum part. (Row sums give A047970).

%e Row 4 of the triangular array is (1 1 3 9) because there are nine tuples with a minimum value of 1, three tuples with a minimum value of 2, one tuple with a minimum value of 3 and one tuple with a minimum value of 4; the relevant unordered partitions are illustrated in the below Gaussian polynomial template:

%e 4

%e 31 32 33

%e 211 221 222

%e 1111

%Y Cf. A047969, A089246.

%K easy,nonn

%O 1,6

%A _Alford Arnold_, Sep 08 2005

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 7 06:02 EST 2023. Contains 360112 sequences. (Running on oeis4.)