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A228754 as a triangular array

1
12
234
3988
520392116
8501261685532
1311948278072314464
212891712459948083111377128
34696627724246438622960813386987256
55168222700134440342207418370182288575972584512

A228754 as a square array

11235813213455
23920501192896961682
48391264821712627722700
821168780459924246134440
1655723480843862342207
32144311129608418370
6437713386182288
12898757597
2562584
512

A228754 as an upper right triangle

11235813213455
23920501192896961682
48391264821712627722700
821168780459924246134440
1655723480843862342207
32144311129608418370
6437713386182288
12898757597
2562584
512

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Last modified March 29 04:59 EDT 2024. Contains 371264 sequences. (Running on oeis4.)