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!)

A201730 as a triangular array

1
20
510
14600
4126100
12210010000
365363631000
10941274322140000
32814372146211610000
98421476061567441800000

A201730 as a square array

1251441122365109432819842
016261003631274437214760
001106332214626156
000114116744
0000118
00000
0000
000
00
0

A201730 as an upper right triangle

1251441122365109432819842
016261003631274437214760
001106332214626156
000114116744
0000118
00000
0000
000
00
0

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 February 27 10:15 EST 2020. Contains 332304 sequences. (Running on oeis4.)