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A203031 as a triangular array

4
124
36284
1083961204
324490447403564
972571001912085071614724
29166902048536230778864857869647804
8748859050839641943612678471883151358686829968202284
2624410754090018828234948

A203031 as a square array

412361083249722916874826244
4283964904571006902048590508107540900
41204740191208853623039641943618828234948
43565071677886481267847188
41472578696315135868
447806829968
420228
4
412361083249722916874826244
4283964904571006902048590508107540900
41204740191208853623039641943618828234948
43565071677886481267847188
41472578696315135868
447806829968
420228
4