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A203577 as a simple table

na(n)
01
11
24
311
458
5212
61304
75567
837734
9178148
101284124
116501420
1248758648
13259775440
142000594288
1511080668871
1686930955662
17496461841956
183947716126292
1923113333523180
20185660199980696
211109722749130576
228983793097101144
2354645629076275356
24445109373450545608
252748480598104423952

[1,1,4,11,58,212,1304,5567,37734,178148,1284124,
 6501420,48758648,259775440,2000594288,11080668871,
 86930955662,496461841956,3947716126292,
 23113333523180,185660199980696,1109722749130576,
 8983793097101144,54645629076275356,
 445109373450545608,2748480598104423952]