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A028877 as a simple table

n a(n)
1 11
2 31
3 59
4 139
5 191
6 251
7 479
8 571
9 1019
10 1151
11 1291
12 1439
13 1759
14 1931
15 2111
16 2699
17 3359
18 4091
19 5179
20 5471
21 6079
22 6719
23 8831
24 10399
25 12539
26 13451
27 14879
28 17419
29 20731
30 23099
31 26891
32 27551
33 28219
34 30271
35 30971
36 33119
37 33851
38 34591

[11,31,59,139,191,251,479,571,1019,1151,1291,1439,
 1759,1931,2111,2699,3359,4091,5179,5471,6079,6719,
 8831,10399,12539,13451,14879,17419,20731,23099,
 26891,27551,28219,30271,30971,33119,33851,34591]

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Last modified April 1 14:52 EDT 2020. Contains 333163 sequences. (Running on oeis4.)