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A036237 as a simple table

na(n)
01
12
25
34
47
510
615
78
811
914
1013
1128
1221
1378
1417
1516
1619
1722
1849
1942
2023
2126
221577
2340

[1,2,5,4,7,10,15,8,11,14,13,28,21,78,17,16,19,22,
 49,42,23,26,1577,40]