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A301589 as a simple table

na(n)
01
11
23
33
47
59
615
720
831
941
1061
1179
12113
13146
14201
15260
16349
17447
18589
19748
20972
211226
221571
231968
242495
253106
263900
274825
286008
297392
309137
3111181
3213731
3316719
3420409
3524737
3630032
3736243
3843783
3952620
4063282
4175760
4290727
43108222
44129097
45153464

[1,1,3,3,7,9,15,20,31,41,61,79,113,146,201,260,
 349,447,589,748,972,1226,1571,1968,2495,3106,3900,
 4825,6008,7392,9137,11181,13731,16719,20409,24737,
 30032,36243,43783,52620,63282,75760,90727,108222,
 129097,153464]