A156289 formatted as a triangular array:
| | | | | | | 1 | | | | | | | |
| | | | | | 1 | | 3 | | | | | | |
| | | | | 1 | | 15 | | 15 | | | | | |
| | | | 1 | | 63 | | 210 | | 105 | | | | |
| | | 1 | | 255 | | 2205 | | 3150 | | 945 | | | |
| | 1 | | 1023 | | 21120 | | 65835 | | 51975 | | 10395 | | |
| 1 | | 4095 | | 195195 | | 1201200 | | 1891890 | | 945945 | | 135135 | |
| 1 | | 16383 | | 1777230 | | 20585565 | | 58108050 | | 54864810 | | 18918900 | | 2027025 |
A156289 formatted as a square array:
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 3 | 15 | 63 | 255 | 1023 | 4095 | 16383 | |
| 15 | 210 | 2205 | 21120 | 195195 | 1777230 | | |
| 105 | 3150 | 65835 | 1201200 | 20585565 | | | |
| 945 | 51975 | 1891890 | 58108050 | | | | |
| 10395 | 945945 | 54864810 | | | | | |
| 135135 | 18918900 | | | | | | |
| 2027025 | | | | | | | |
A156289 formatted as an upper right triangle:
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 3 | 15 | 63 | 255 | 1023 | 4095 | 16383 |
| | 15 | 210 | 2205 | 21120 | 195195 | 1777230 |
| | | 105 | 3150 | 65835 | 1201200 | 20585565 |
| | | | 945 | 51975 | 1891890 | 58108050 |
| | | | | 10395 | 945945 | 54864810 |
| | | | | | 135135 | 18918900 |
| | | | | | | 2027025 |
|
