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A118908 as a simple table

na(n)
14
215
3221
448839
52385247913
65689407606470855563
732369358912568429679140929317208046943
81047775396410673232345014594095988998399127191704501568910205139392491645247

[4,15,221,48839,2385247913,5689407606470855563,
 32369358912568429679140929317208046943,
 10477753964106732323450145940959889983991271917045\
 01568910205139392491645247]