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A131733 as a simple table

na(n)
11
20
30
40
52
62
74
84
96
1010
1110
1214
1316
1416
1518
1622
1726
1826
1930
2032
2132
2236
2338
2442
2548
2650
2750
2852
2952
3054
3166
3268
3372
3472
3580
3680
3784
3888
3990
4094
4198
4298
43106
44106
45108
46108
47118
48128
49130
50130
51132
52136
53136
54144
55148
56152
57156
58156
59160
60162
61162
62170

[1,0,0,0,2,2,4,4,6,10,10,14,16,16,18,22,26,26,30,
 32,32,36,38,42,48,50,50,52,52,54,66,68,72,72,80,
 80,84,88,90,94,98,98,106,106,108,108,118,128,130,
 130,132,136,136,144,148,152,156,156,160,162,162,
 170]