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A318910 as a simple table

na(n)
01
11
22
33
46
511
620
737
870
9132
10252
11482
12924
131778
143432
156639
1612870
1724994
1848620
1994716
20184756
21360821
22705432
231380533
242704156
255301248
2610400600
2720419624
2840116600
2978861995
30155117520
31305272239
32601080390
331184086260
342333606220
354601020897
369075135300

[1,1,2,3,6,11,20,37,70,132,252,482,924,1778,3432,
 6639,12870,24994,48620,94716,184756,360821,705432,
 1380533,2704156,5301248,10400600,20419624,
 40116600,78861995,155117520,305272239,601080390,
 1184086260,2333606220,4601020897,9075135300]