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A158642 as a simple table

na(n)
00
11
24
39
4121
5252
6484
710201
812321
914641
1020502
1123632
1226962
1340804
1444944
151002001
161113111
171226221
181234321
191357531
202005002
212126212
222216122
232249422
242347432
252429242
264008004
274229224
28100020001

[0,1,4,9,121,252,484,10201,12321,14641,20502,
 23632,26962,40804,44944,1002001,1113111,1226221,
 1234321,1357531,2005002,2126212,2216122,2249422,
 2347432,2429242,4008004,4229224,100020001]