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A227941 as a simple table

na(n)
01
11
21
32
43
54
619
755
8125
9245
10434
114060
1221186
1381212
14254813
15692678
161688555
173776432
1860101767
19511650887
203089821383
2114824989723
2260057570858
23213302293918
24681247718668
251992449334436
265409214694961
27132273848506202
281692162553490943

[1,1,1,2,3,4,19,55,125,245,434,4060,21186,81212,
 254813,692678,1688555,3776432,60101767,511650887,
 3089821383,14824989723,60057570858,213302293918,
 681247718668,1992449334436,5409214694961,
 132273848506202,1692162553490943]