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A250053 as a simple table

na(n)
1735
21299
32292
44030
57054
612284
721276
836654
965647
10117118
11207970
12367357
13645284
141127254
151959943
163490956
176215841
1811039715
1919532090
2034400784
2160306267
22105317881
23186769658
24331702865
25588582975
261041809368
271837663608

[735,1299,2292,4030,7054,12284,21276,36654,65647,
 117118,207970,367357,645284,1127254,1959943,
 3490956,6215841,11039715,19532090,34400784,
 60306267,105317881,186769658,331702865,588582975,
 1041809368,1837663608]