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A275650 as a simple table

na(n)
14
228
3214
41803
515830
6142844
71313047
812220699
9114790260
101085885280
1110330026070
1298719755796
13947012920362
149113815047794
1587950106960771
16850754904051968

[4,28,214,1803,15830,142844,1313047,12220699,
 114790260,1085885280,10330026070,98719755796,
 947012920362,9113815047794,87950106960771,
 850754904051968]