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A303841 as a triangular array

1
11
111
1222
12443
1361096
13917242011
14123050634823
1416449614616411547
152067164315437444286106
152591267592102213001204719235
1630126408105921263331389933281842551

A303841 as a square array

111111111111
11223344556
124691216202530
24101730446791126
39245096164267408
620631463155921059
114816443710222126
2311544413003331
4728612043899
1067193328
2351842
551
111111111111
11223344556
124691216202530
24101730446791126
39245096164267408
620631463155921059
114816443710222126
2311544413003331
4728612043899
1067193328
2351842
551