login
This site is supported by donations to The OEIS Foundation.
Logo

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

A122431 as a triangular array

1
31
331
1331
01331
001331
0001331
00001331
000001331
0000001331
00000001

A122431 as a square array

13310000000
1331000000
133100000
13310000
1331000
133100
13310
1331
13
1

A122431 as an upper right triangle

13310000000
1331000000
133100000
13310000
1331000
133100
13310
1331
13
1

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified June 19 06:19 EDT 2013. Contains 226399 sequences.