Logo

A140071 formatted as a triangular array:

1
3 1
9 4 1
27 13 7 1
81 40 34 8 1
243 121 142 42 11 1
729 364 547 184 75 12 1
2187 1093 2005 731 409 87 15 1
6561 3280 7108 2736 1958 496 132 16 1
19683 9841 24604 9844 8610 2454 892 148 19 1

A140071 formatted as a square array:

1 3 9 27 81 243 729 2187 6561 19683
1 4 13 40 121 364 1093 3280 9841
1 7 34 142 547 2005 7108 24604
1 8 42 184 731 2736 9844
1 11 75 409 1958 8610
1 12 87 496 2454
1 15 132 892
1 16 148
1 19
1

A140071 formatted as an upper right triangle:

1 3 9 27 81 243 729 2187 6561 19683
1 4 13 40 121 364 1093 3280 9841
1 7 34 142 547 2005 7108 24604
1 8 42 184 731 2736 9844
1 11 75 409 1958 8610
1 12 87 496 2454
1 15 132 892
1 16 148
1 19
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 18 21:37 EST 2009. Contains 171024 sequences.


AT&T Labs Research