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A000495 as a simple table

na(n)
00
11
24
310
427
574
6202
7548
81490
94052
1011013
1129937
1281377
13221207
14601302
151634509
164443055
1712077476
1832829985
1989241150
20242582598
21659407867
221792456423
234872401723
2413244561065
2536002449669
2697864804714
27266024120301
28723128532146
291965667148572

[0,1,4,10,27,74,202,548,1490,4052,11013,29937,
 81377,221207,601302,1634509,4443055,12077476,
 32829985,89241150,242582598,659407867,1792456423,
 4872401723,13244561065,36002449669,97864804714,
 266024120301,723128532146,1965667148572]