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A054228 as a simple table

na(n)
01
11
22
32
46
510
619
732
861
9109
10203
11381
12723
131371
142623
155040
169711
1718781
1836405
1970710
20137603
21268242
22523655
231023567
242002923
253923596
267693084
2715097117
2829649512
2958271080
30114596811
31225504427
32443998492
33874651263
341723852015

[1,1,2,2,6,10,19,32,61,109,203,381,723,1371,2623,
 5040,9711,18781,36405,70710,137603,268242,523655,
 1023567,2002923,3923596,7693084,15097117,29649512,
 58271080,114596811,225504427,443998492,874651263,
 1723852015]