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A258427 as a triangular array
| 1 | ||||||||||||||
| 12 | 18 | |||||||||||||
| 112 | 420 | 336 | ||||||||||||
| 956 | 6816 | 12936 | 7200 | |||||||||||
| 7830 | 95579 | 324540 | 414450 | 178200 | ||||||||||
| 62744 | 1244466 | 6755720 | 14886300 | 14355000 | 5045040 | |||||||||
| 496518 | 15537456 | 127063596 | 430572780 | 699460740 | 542341800 | 161441280 |
A258427 as a square array
| 1 | 12 | 112 | 956 | 7830 | 62744 | 496518 |
| 18 | 420 | 6816 | 95579 | 1244466 | 15537456 | |
| 336 | 12936 | 324540 | 6755720 | 127063596 | ||
| 7200 | 414450 | 14886300 | 430572780 | |||
| 178200 | 14355000 | 699460740 | ||||
| 5045040 | 542341800 | |||||
| 161441280 |
A258427 as an upper right triangle
| 1 | 12 | 112 | 956 | 7830 | 62744 | 496518 |
| 18 | 420 | 6816 | 95579 | 1244466 | 15537456 | |
| 336 | 12936 | 324540 | 6755720 | 127063596 | ||
| 7200 | 414450 | 14886300 | 430572780 | |||
| 178200 | 14355000 | 699460740 | ||||
| 5045040 | 542341800 | |||||
| 161441280 |