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A304964 as a simple table

na(n)
01
11
25
313
447
5133
6443
71333
84263
913143
1041419
11128791
12403815
131259639
143941579
1512310299
1638492034
17120271953
18375964616
191174935195
203672413322
2111477465221
2235872928244
23112117013835
24350417746650
251095202995267
263422999582632
2710698350241417
2833437065631262
29104505382585023

[1,1,5,13,47,133,443,1333,4263,13143,41419,128791,
 403815,1259639,3941579,12310299,38492034,
 120271953,375964616,1174935195,3672413322,
 11477465221,35872928244,112117013835,350417746650,
 1095202995267,3422999582632,10698350241417,
 33437065631262,104505382585023]