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A090988 as a triangular array

2
42
842
16842
3216842
643216842
128643216842
256128643216842
512256128643216842
1024512256128643216842
20481024512256128643216842
409620481024512256

A090988 as a square array

248163264128256512102420484096
24816326412825651210242048
2481632641282565121024
248163264128256512
248163264128256
248163264
2481632
24816
248
24
2

A090988 as an upper right triangle

248163264128256512102420484096
24816326412825651210242048
2481632641282565121024
248163264128256512
248163264128256
248163264
2481632
24816
248
24
2

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Last modified April 19 05:19 EDT 2024. Contains 371782 sequences. (Running on oeis4.)