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A000295号作为一个简单的表

n个a(n)
00
10
21
4
411
526
657
7120
8247
9502
101013
112036
124083
138178
1416369
1532752
1665519
17131054
18262125
19524268
201048555
212097130
224194281
238388584
2416777191
2533554406
2667108837
27134217700
28268435427
29536870882
301073741793
312147483616
324294967263
338589934558

[0,0,1,4,11,26,57,120,247,502,1013,2036,4083,8178,16369,32752,65519,131054,262125,524268,1048555,2097130,4194281,8388584,16777191,33554406,67108837,134217700,268435427,536870882,1073741793,2147483616,4294967263,8589934558]