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A303898 as a simple table

na(n)
14
2154
37173426
4719542871594973492612
5725844434877115011240961139425860785107485774851238821757026656

[4,154,7173426,719542871594973492612,
 72584443487711501124096113942586078510748577485123\
 8821757026656]