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A274942 as a simple table

na(n)
31
41
51
62
72
84
96
1012
1118
1241
1366
14154
15265
16628
171132
182748
195098
2012444

[1,1,1,2,2,4,6,12,18,41,66,154,265,628,1132,2748,
 5098,12444]