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A084840型作为一个简单的表

n个a(n)
10
20
0
40
51
62
71
82
92
102
11
12
134
144
154
162
174
184
194
207
215
224
236
245
257
266
278
287
296
309
317
328
339
348
359
369
378
3810
3910
4010
4110
4210
4312
4411
459
4612
4711
4811
4914
5010
5114
5214
5313
5414
5513
5613
5714
5816
5915
6013
6116
6215
6317
6417
6515
6618
6714
6817
6916
7019
7118
7219
7315
7420
7519
7618
7720
7820
7918
8020
8121
8222

[0,0,0,0,1,2,1,2,2,2,3,3,4,4,4,2,4,4,4,7,5,4,6,5,7,6,8,7,6,9,7,8,9,8,9,9,8,10,10,10,10,10,12,11,9,12,11,11,14,10,14,14,13,14,13,13,14,16,15,13,16,15,17,17,15,18,14,17,16,19,18,19,15,20,19,18,20,20,18,20,21,22]