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A284026型作为一个简单的表

n个a(n)
01
1
27
13
425
559
6127
7215
8407
9957
102029
113429
126437
1315245
1432665
1555067
16103967
17245271
18518935
19876821
201646865
213899667
228355843
2314090241
2426607617
2562783491
26132841475
27224460801
28421593089
29998309891
302139095043
313607101441
326811549697

[1,3,7,13,25,59,127,215,407,957,2029,3429,6437,15245,32665,55067,103967,245271,518935,876821,1646865,3899667,8355843,14090241,26607617,62783491,132841475,224460801,421593089,998309891,2139095043,3607101441,6811549697]