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A056481 as a simple table
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 3 |
| 6 | 2 |
| 7 | 7 |
| 8 | 6 |
| 9 | 14 |
| 10 | 12 |
| 11 | 31 |
| 12 | 27 |
| 13 | 63 |
| 14 | 56 |
| 15 | 123 |
| 16 | 120 |
| 17 | 255 |
| 18 | 238 |
| 19 | 511 |
| 20 | 495 |
| 21 | 1015 |
| 22 | 992 |
| 23 | 2047 |
| 24 | 2010 |
| 25 | 4092 |
| 26 | 4032 |
| 27 | 8176 |
| 28 | 8127 |
| 29 | 16383 |
| 30 | 16242 |
| 31 | 32767 |
| 32 | 32640 |
| 33 | 65503 |
| 34 | 65280 |
| 35 | 131061 |
| 36 | 130788 |
| 37 | 262143 |
| 38 | 261632 |
| 39 | 524223 |
| 40 | 523770 |
| 41 | 1048575 |
| 42 | 1047494 |
| 43 | 2097151 |
| 44 | 2096127 |
| 45 | 4194162 |
[0,0,0,1,1,3,2,7,6,14,12,31,27,63,56,123,120,255, 238,511,495,1015,992,2047,2010,4092,4032,8176, 8127,16383,16242,32767,32640,65503,65280,131061, 130788,262143,261632,524223,523770,1048575, 1047494,2097151,2096127,4194162] |