Logo

A140183 formatted as a triangular array:

1
2 2
3 5 1
4 9 4 2
5 14 10 9 1
6 20 20 25 6 2
7 27 35 55 21 13 1
8 35 56 105 56 49 8 2
9 44 84 182 126 140 36 17 1
10 54 120 294 252 336 120 81 10 2
1 65 165 450 462 714 330 285 55 21 1

A140183 formatted as a square array:

1 2 3 4 5 6 7 8 9 10 1
2 5 9 14 20 27 35 44 54 65
1 4 10 20 35 56 84 120 165
2 9 25 55 105 182 294 450
1 6 21 56 126 252 462
2 13 49 140 336 714
1 8 36 120 330
2 17 81 285
1 10 55
2 21
1

A140183 formatted as an upper right triangle:

1 2 3 4 5 6 7 8 9 10 1
2 5 9 14 20 27 35 44 54 65
1 4 10 20 35 56 84 120 165
2 9 25 55 105 182 294 450
1 6 21 56 126 252 462
2 13 49 140 336 714
1 8 36 120 330
2 17 81 285
1 10 55
2 21
1

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


AT&T Labs Research