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A117177 as a simple table

na(n)
11
21
32
45
512
625
757
8115
9240
10484
11996
121987
134041
148071
1516252
1632527
1765292
18130558
19261651
20523271
211047533
222095138
234192255
248384449
2516773161
2633546227
2767100496
28134201373
29268419000
30536837755
311073709065
322147417864

[1,1,2,5,12,25,57,115,240,484,996,1987,4041,8071,
 16252,32527,65292,130558,261651,523271,1047533,
 2095138,4192255,8384449,16773161,33546227,
 67100496,134201373,268419000,536837755,1073709065,
 2147417864]