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A135256 as a triangular array

1
2-1
12-81
144-10820-1
3600-2844608-451
172800-14011232028-276893-1
15724800-129229923054660-28391611231-1841
2641766400-2186787456526105872-507525482170724-42143352-1
808380518400-671798727936163175184288-16056385560

A135256 as a square array

12121443600172800157248002641766400808380518400
-1-8-108-2844-140112-12922992-2186787456-671798727936
120608320283054660526105872163175184288
-1-45-2768-283916-50752548-16056385560
193112312170724
-1-184-42143
1352
-1

A135256 as an upper right triangle

12121443600172800157248002641766400808380518400
-1-8-108-2844-140112-12922992-2186787456-671798727936
120608320283054660526105872163175184288
-1-45-2768-283916-50752548-16056385560
193112312170724
-1-184-42143
1352
-1

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Last modified July 13 17:54 EDT 2020. Contains 335689 sequences. (Running on oeis4.)