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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 7 |
| 3 | 15 |
| 4 | 28 |
| 5 | 60 |
| 6 | 127 |
| 7 | 254 |
| 8 | 510 |
| 9 | 1021 |
| 10 | 2045 |
| 11 | 4090 |
| 12 | 8166 |
| 13 | 16362 |
| 14 | 32762 |
| 15 | 65534 |
| 16 | 130942 |
| 17 | 262014 |
| 18 | 524286 |
| 19 | 1048574 |
| 20 | 2097150 |
| 21 | 4194274 |
| 22 | 8388499 |
| 23 | 16776879 |
| 24 | 33553134 |
| 25 | 67107581 |
| 26 | 134217405 |
| 27 | 268435134 |
| 28 | 536869630 |
| 29 | 1073741822 |
| 30 | 2147481599 |
| 31 | 4294965223 |
| 32 | 8589921192 |
[1,2,7,15,28,60,127,254,510,1021,2045,4090,8166, 16362,32762,65534,130942,262014,524286,1048574, 2097150,4194274,8388499,16776879,33553134, 67107581,134217405,268435134,536869630,1073741822, 2147481599,4294965223,8589921192] |