login

A252210 as a triangular array

2680
47434743
931251789312
19794172761727619794
51024443221101284432251024
125554215814332462332462215814125554
278710932474290885611802262908856932474278710
763726256895422430534

A252210 as a square array

2680474393121979451024125554278710763726
4743517817276443222158149324742568954
931217276110128332462290885622430534
19794443223324621180226
510242158142908856
125554932474
278710
2680474393121979451024125554278710763726
4743517817276443222158149324742568954
931217276110128332462290885622430534
19794443223324621180226
510242158142908856
125554932474
278710