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A113039 as a simple table

na(n)
10
20
31
40
53
65
70
823
952
100
11254
12593
130
143611
158859
160
1755554
18142169
190
20946871
212466282
220
2317095813
2445359632
250
26323760077
27870624976
280
296367406592
3017307580710
310
32129063054631
33353941332518
340
352682355470491
367410591325928
370
3856930627178287

[0,0,1,0,3,5,0,23,52,0,254,593,0,3611,8859,0,
 55554,142169,0,946871,2466282,0,17095813,45359632,
 0,323760077,870624976,0,6367406592,17307580710,0,
 129063054631,353941332518,0,2682355470491,
 7410591325928,0,56930627178287]