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A252121 as a triangular array

41092
10917101091710
306990488393002230699048
84513981469873080566987308056845139814
23117206344542424609174167598381039454242460917423117206344
63395868460842424000928232373564978470681

A252121 as a square array

4109210917103069904884513981423117206344633958684608
109171083930022698730805654242460917442424000928232
3069904869873080561675983810394373564978470681
845139814542424609174
23117206344
4109210917103069904884513981423117206344633958684608
109171083930022698730805654242460917442424000928232
3069904869873080561675983810394373564978470681
845139814542424609174
23117206344

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Last modified July 13 17:13 EDT 2026. Contains 397380 sequences.
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