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A101220 as a triangular array

0
13
1491820
9650140601244031749109632
11235954952879292087281674202577225402428294801859492240650847
314277911756596901234928473553777403518933005611355164042322083099525697299278

A101220 as a square array

01149650112359549531427791175659690
391140601287929208721234928473553777403
820244031781674202577251893300561135516404
49109632254024282948012322083099525697299278
859492240650847

A101220 as an upper right triangle

01149650112359549531427791175659690
391140601287929208721234928473553777403
820244031781674202577251893300561135516404
49109632254024282948012322083099525697299278
859492240650847

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Last modified February 17 22:32 EST 2018. Contains 299297 sequences. (Running on oeis4.)