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A246347 as a simple table

na(n)
11
22
34
48
59
617
719
835
939
1071
1179
12143
13159
14287
15319
16575
17639
181151
191279
202303
212559
224607
235119
249215
2510239
2618431
2720479
2836863
2940959
3073727
3181919
32147455
33163839
34294911
35327679
36589823
37655359
381179647
391310719
402359295
412621439
424718591
435242879
449437183
4510485759

[1,2,4,8,9,17,19,35,39,71,79,143,159,287,319,575,
 639,1151,1279,2303,2559,4607,5119,9215,10239,
 18431,20479,36863,40959,73727,81919,147455,163839,
 294911,327679,589823,655359,1179647,1310719,
 2359295,2621439,4718591,5242879,9437183,10485759]