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A049285 as a simple table

na(n)
10
20
30
40
51
61
72
84
97
1013
1124
1243
1378
14141
15253
16455
17818
181468
192637
204734
218495
2215247
2327361
2449094
2588093
26158063
27283599
28508840
29912956
301638003
312938861
325272795
339460227
3416973125
3530452380
3654636174
3798025512
38175872397
39315541228
40566127763

[0,0,0,0,1,1,2,4,7,13,24,43,78,141,253,455,818,
 1468,2637,4734,8495,15247,27361,49094,88093,
 158063,283599,508840,912956,1638003,2938861,
 5272795,9460227,16973125,30452380,54636174,
 98025512,175872397,315541228,566127763]