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A203976 as a simple table

na(n)
00
11
25
34
415
511
640
729
8105
976
10275
11199
12720
13521
141885
151364
164935
173571
1812920
199349
2033825
2124476
2288555
2364079
24231840
25167761
26606965
27439204
281589055
291149851
304160200
313010349
3210891545
337881196
3428514435
3520633239
3674651760
3754018521
38195440845

[0,1,5,4,15,11,40,29,105,76,275,199,720,521,1885,
 1364,4935,3571,12920,9349,33825,24476,88555,64079,
 231840,167761,606965,439204,1589055,1149851,
 4160200,3010349,10891545,7881196,28514435,
 20633239,74651760,54018521,195440845]