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A008281 as a triangular array

1
01
011
0122
02455
0510141616
0163246566161
061122178224256272272
027254480010241202132413851385
0138527704094529663207120766479367936

A008281 as a square array

1000000000
1112516612721385
12410321225442770
2514461788004094
5165622410245296
166125612026320
6127213247120
27213857664
13857936
7936

A008281 as an upper right triangle

1000000000
1112516612721385
12410321225442770
2514461788004094
5165622410245296
166125612026320
6127213247120
27213857664
13857936
7936

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Last modified March 28 05:02 EDT 2024. Contains 371235 sequences. (Running on oeis4.)