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A187817 as a simple table

na(n)
01
11
22
36
44
54
64
74
88
912
1020
1132
1252
13104
14188
15344
16616
171116
182232
194236
208084
2115212
2228760
2357520
24111512
25216804
26417560
27806440
281612880
293162132
306209192
3112113136
3223670168
3347340336
3493411704
35184494460
36362693224
37713767712
381427535424

[1,1,2,6,4,4,4,4,8,12,20,32,52,104,188,344,616,
 1116,2232,4236,8084,15212,28760,57520,111512,
 216804,417560,806440,1612880,3162132,6209192,
 12113136,23670168,47340336,93411704,184494460,
 362693224,713767712,1427535424]