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A343279 as a simple table

na(n)
01
10
21
31
47
515
690
7301
81701
97770
1042525
11246730
121323652
139321312
1449329280
15408741333
162141764053
1720415995028
18106175395755
191144614626805
205917584964655
2171187132291275
22366282500870286
234864251308951100
2424930204590758260
25362262620784874680

[1,0,1,1,7,15,90,301,1701,7770,42525,246730,
 1323652,9321312,49329280,408741333,2141764053,
 20415995028,106175395755,1144614626805,
 5917584964655,71187132291275,366282500870286,
 4864251308951100,24930204590758260,
 362262620784874680]