login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A109878 as a triangular array

1
11
123
26124
624602010
241203601206036
1207202520840420252168
7205040201606720336020161344960
5040403201814406048030240181441209686406480
403203628801814400604800

A109878 as a square array

1112624120720504040320
12624120720504040320362880
312603602520201601814401814400
420120840672060480604800
1060420336030240
36252201618144
168134412096
9608640
6480

A109878 as an upper right triangle

1112624120720504040320
12624120720504040320362880
312603602520201601814401814400
420120840672060480604800
1060420336030240
36252201618144
168134412096
9608640
6480

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 14 10:35 EDT 2020. Contains 335722 sequences. (Running on oeis4.)