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A351642 as a simple table

na(n)
01
11
22
34
410
526
674
7218
8668
92116
106928
1123254
1279998
13281694
141011956
153704900
1613815692
1752386978
18201787950
19789178950
203130824160
2112589367840
2251287685476
23211557376938
24883067740514
253728494418330
2615916998678040
2768672820917088
28299331260431104

[1,1,2,4,10,26,74,218,668,2116,6928,23254,79998,
 281694,1011956,3704900,13815692,52386978,
 201787950,789178950,3130824160,12589367840,
 51287685476,211557376938,883067740514,
 3728494418330,15916998678040,68672820917088,
 299331260431104]