|
Search: id:A101320
|
|
|
| A101320 |
|
Numbers n such that 4n-1, 8n-1, 16n-1, 32n-1, 64n-1 and 128n-1 are primes. |
|
+0
2
|
|
| 15855, 31785, 267300, 280665, 399675, 561330, 946050, 990510, 1022220, 1082115, 1164735, 1283250, 1303875, 1309545, 1514880, 1669065, 1924410, 2850225, 3078675, 3092760, 3492270, 3536385, 3611205, 3920670, 4148970, 4454775
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
EXAMPLE
|
4*15855-1, 8*15855-1, 16*15855-1, 32*15855-1, 64*15855-1 and 128*15855-1 are primes, so the first entry is 15855.
|
|
CROSSREFS
|
Cf. A002515, A101790, A101794, A101994.
Sequence in context: A061733 A112450 A063847 this_sequence A031811 A129473 A031839
Adjacent sequences: A101317 A101318 A101319 this_sequence A101321 A101322 A101323
|
|
KEYWORD
|
easy,nonn
|
|
AUTHOR
|
Douglas Stones (dssto1(AT)student.monash.edu.au), Dec 23 2004
|
|
|
Search completed in 0.002 seconds
|
