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A204884 as a triangular array

3348
9170391703
260478260826542604782
6199434543215181043215181061994345
16094222022265482676979228199600226548267691609422202
43272008917142193486151810058007480113100580074801131421934861518

A204884 as a square array

334891703260478261994345160942220243272008917
917036082654432151810226548267691421934861518
26047824321518107922819960010058007480113
619943452265482676910058007480113
16094222021421934861518
334891703260478261994345160942220243272008917
917036082654432151810226548267691421934861518
26047824321518107922819960010058007480113
619943452265482676910058007480113
16094222021421934861518