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A298408 as a simple table

na(n)
01
11
21
36
420
553
6130
7277
8574
91115
102126
113862
127021
1312341
1421553
1536957
1663111
17106224
18178407
19296638
20492231
21811731
221335994
232188950
243583027
255847108
269532980
2715512342
2825226123
2940967842
3066506422
31107869832
32174908573
33283452771
34459264017

[1,1,1,6,20,53,130,277,574,1115,2126,3862,7021,
 12341,21553,36957,63111,106224,178407,296638,
 492231,811731,1335994,2188950,3583027,5847108,
 9532980,15512342,25226123,40967842,66506422,
 107869832,174908573,283452771,459264017]