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A216338 as a triangular array

1
11
122
1232
2515105
2124252275
54260272687711415
513624401284015144414040915
15602619153737802387180502658115975206652
15244032277612297870878521609982716018378580

A216338 as a square array

111122551515
122512421366022440
231542602244061915322776
210527261284037378012297870
52787715144238718087852160
5114414050265899827160
1540911597518378580
152066
52
111122551515
122512421366022440
231542602244061915322776
210527261284037378012297870
52787715144238718087852160
5114414050265899827160
1540911597518378580
152066
52