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A111574 as a simple table

na(n)
01
1-1
22
33
43
54
69
715
822
935
1059
1196
12153
13247
14402
15651
161051
171700
182753
194455
207206
2111659
2218867
2330528
2449393
2579919
26129314
27209235
28338547
29547780
30886329
311434111
322320438
333754547
346074987
359829536
3615904521
3725734055
3841638578
3967372635

[1,-1,2,3,3,4,9,15,22,35,59,96,153,247,402,651,
 1051,1700,2753,4455,7206,11659,18867,30528,49393,
 79919,129314,209235,338547,547780,886329,1434111,
 2320438,3754547,6074987,9829536,15904521,25734055,
 41638578,67372635]