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A181527 as a simple table

na(n)
01
14
213
338
4103
5264
6649
71546
83595
98204
1018445
1140974
1290127
13196624
14426001
15917522
161966099
174194324
188912917
1918874390
2039845911
2183886104
22176160793
23369098778
24771751963
251610612764
263355443229
276979321886
2814495514655
2930064771104
3062277025825

[1,4,13,38,103,264,649,1546,3595,8204,18445,40974,
 90127,196624,426001,917522,1966099,4194324,
 8912917,18874390,39845911,83886104,176160793,
 369098778,771751963,1610612764,3355443229,
 6979321886,14495514655,30064771104,62277025825]