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A186878 as a simple table

na(n)
1186096
218517
332992
4108640
5230224
6287368
7338176
8414184
9568744
10927136
111492600
122387392
134046104
146975931
1511357422
1619105849
1732364013
1852661545
1988036021
20148729189
21243684934
22407116792
23686279218
241129121971
251883516491

[186096,18517,32992,108640,230224,287368,338176,
 414184,568744,927136,1492600,2387392,4046104,
 6975931,11357422,19105849,32364013,52661545,
 88036021,148729189,243684934,407116792,686279218,
 1129121971,1883516491]