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A189348 as a simple table

na(n)
11
24
313
445
5160
6565
72005
87108
925209
1089401
11317056
121124425
133987721
1414142276
1550154949
16177872293
17630816160
182237161405
197933993245
2028137553540
2199788579953
22353895752689
231255075518976
244451069407761
2515785519335825

[1,4,13,45,160,565,2005,7108,25209,89401,317056,
 1124425,3987721,14142276,50154949,177872293,
 630816160,2237161405,7933993245,28137553540,
 99788579953,353895752689,1255075518976,
 4451069407761,15785519335825]