Logo

A140182 formatted as a triangular array:

1
2 3
3 7 1
4 12 4 3
5 18 10 13 1
6 25 20 35 6 3
7 33 35 75 21 19 1
8 42 56 140 56 70 8 3
9 52 84 238 126 196 36 25 1
10 63 120 378 252 462 120 117 10 3
11 75 165 570 462 966 330 405 55 31 1

A140182 formatted as a square array:

1 2 3 4 5 6 7 8 9 10 11
3 7 12 18 25 33 42 52 63 75
1 4 10 20 35 56 84 120 165
3 13 35 75 140 238 378 570
1 6 21 56 126 252 462
3 19 70 196 462 966
1 8 36 120 330
3 25 117 405
1 10 55
3 31
1

A140182 formatted as an upper right triangle:

1 2 3 4 5 6 7 8 9 10 11
3 7 12 18 25 33 42 52 63 75
1 4 10 20 35 56 84 120 165
3 13 35 75 140 238 378 570
1 6 21 56 126 252 462
3 19 70 196 462 966
1 8 36 120 330
3 25 117 405
1 10 55
3 31
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 December 7 23:50 EST 2009. Contains 170430 sequences.


AT&T Labs Research