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A221853 as a simple table

na(n)
11
231
3302
43437
537155
6406612
74434129
848397883
9528123314
105763315281
1162892896491
12686329748776
137489683895265
1481732408497079
15891918279715066
169733204380907645
17106215187016111667
181159090627331995148

[1,31,302,3437,37155,406612,4434129,48397883,
 528123314,5763315281,62892896491,686329748776,
 7489683895265,81732408497079,891918279715066,
 9733204380907645,106215187016111667,
 1159090627331995148]