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A077553 as a triangular array

4
46
469
46910
4691015
469101525
46910141521
4691014152125
469101415212535
46910141521253549
4691014152122253335
469101415212225333549
46910

A077553 as a square array

4444444444444
666666666666
99999999999
10101010101010101010
1515141414141414
25151515151515
212121212121
2525252222
35352525
493333
3535
49

A077553 as an upper right triangle

4444444444444
666666666666
99999999999
10101010101010101010
1515141414141414
25151515151515
212121212121
2525252222
35352525
493333
3535
49

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Last modified April 19 09:23 EDT 2024. Contains 371782 sequences. (Running on oeis4.)