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A022180 as a triangular array

1
11
1171
12732731
143697016143691
1699051796558517965585699051
11118481459925966573605001745459925966511184811
1178956971177411592721301490686407185301490686407185

A022180 as a square array

11111111
117273436969905111848117895697
1273701611796558545992596651177411592721
143691796558573605001745301490686407185
1699054599259665301490686407185
11118481
1

A022180 as an upper right triangle

11111111
117273436969905111848117895697
1273701611796558545992596651177411592721
143691796558573605001745301490686407185
1699054599259665301490686407185
11118481
1

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Last modified April 24 19:49 EDT 2019. Contains 322446 sequences. (Running on oeis4.)