A202181 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 1 | | 3 | | 1 |
| | | | | | | | | 1 | | 7 | | 6 | | 1 |
| | | | | | | | 1 | | 13 | | 24 | | 10 | | 1 |
| | | | | | | 1 | | 25 | | 77 | | 61 | | 15 | | 1 |
| | | | | | 1 | | 43 | | 228 | | 291 | | 130 | | 21 | | 1 |
| | | | | 1 | | 76 | | 644 | | 1229 | | 856 | | 246 | | 28 | | 1 |
| | | | 1 | | 128 | | 1776 | | 4872 | | 4840 | | 2136 | | 427 | | 36 | | 1 |
| | | 1 | | 216 | | 4854 | | 18711 | | 25107 | | 15543 | | 4733 | | 694 | | 45 | | 1 |
| | 1 | | 354 | | 13184 | | 70858 | | 124167 | | 101538 | | 43120 | | 9577 | | 1071 | | 55 | | 1 |
|
A202181 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 7 | 13 | 25 | 43 | 76 | 128 | 216 | 354
| | 1 | 6 | 24 | 77 | 228 | 644 | 1776 | 4854 | 13184
| | 1 | 10 | 61 | 291 | 1229 | 4872 | 18711 | 70858
| | 1 | 15 | 130 | 856 | 4840 | 25107 | 124167
| | 1 | 21 | 246 | 2136 | 15543 | 101538
| | 1 | 28 | 427 | 4733 | 43120
| | 1 | 36 | 694 | 9577
| | 1 | 45 | 1071
| | 1 | 55
| | 1
|
A202181 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 7 | 13 | 25 | 43 | 76 | 128 | 216 | 354
| | | 1 | 6 | 24 | 77 | 228 | 644 | 1776 | 4854 | 13184
| | | | 1 | 10 | 61 | 291 | 1229 | 4872 | 18711 | 70858
| | | | | 1 | 15 | 130 | 856 | 4840 | 25107 | 124167
| | | | | | 1 | 21 | 246 | 2136 | 15543 | 101538
| | | | | | | 1 | 28 | 427 | 4733 | 43120
| | | | | | | | 1 | 36 | 694 | 9577
| | | | | | | | | 1 | 45 | 1071
| | | | | | | | | | 1 | 55
| | | | | | | | | | | 1
|
|
