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A004646 as a simple table

na(n)
01
12
24
311
422
544
6121
7242
8514
91331
102662
115654
1214641
1332612
1465524
15164351
16362032
171054064
182141161
194312352
2011625034
2123553101
2250436202
23131205404
24262414111
25555131222
261443262444
273216555221
286436443442
2916206220214
3035415440431
31104134211162

[1,2,4,11,22,44,121,242,514,1331,2662,5654,14641,
 32612,65524,164351,362032,1054064,2141161,4312352,
 11625034,23553101,50436202,131205404,262414111,
 555131222,1443262444,3216555221,6436443442,
 16206220214,35415440431,104134211162]