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A143977 as a triangular array

1
11
121
2222
23332
244442
3456543
35677653
367898763
46810101010864
4791112121211974
48101214141414121084
5811141516171615141185

A143977 as a square array

1112223334445
122344566788
1234567891011
23467810111214
2457910121415
246810121416
35710121417
368111416
3691215
471014
4811
48
5

A143977 as an upper right triangle

1112223334445
122344566788
1234567891011
23467810111214
2457910121415
246810121416
35710121417
368111416
3691215
471014
4811
48
5

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Last modified August 10 17:16 EDT 2024. Contains 375058 sequences. (Running on oeis4.)