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A077583 as a triangular array

1
24
369
46810
510152025
689101214
7142128354249
810121416182022
91215182124273033
10121415161820222425
112233445566778899110121
1214151618202122

A077583 as a square array

123456789101112
466108141012122214
98159211215143315
102010281418154416
2512351621165518
14421824186620
492027207721
2230228822
332499
25110
121
123456789101112
466108141012122214
98159211215143315
102010281418154416
2512351621165518
14421824186620
492027207721
2230228822
332499
25110
121