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A253397 as a triangular array

16
4444
9610296
180143143180
304197174197304
476250246246250476
704320316346316320704
996391419465465419391996
13604775206326666325204771360
1804564651823932932823651

A253397 as a square array

16449618030447670499613601804
44102143197250320391477564
96143174246316419520651
180197246346465632823
304250316465666932
476320419632932
704391520823
996477651
1360

A253397 as an upper right triangle

16449618030447670499613601804
44102143197250320391477564
96143174246316419520651
180197246346465632823
304250316465666932
476320419632932
704391520823
996477651
1360

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Last modified April 24 00:30 EDT 2024. Contains 371917 sequences. (Running on oeis4.)