|
Search: id:A047385
|
|
|
| A047385 |
|
Numbers that are congruent to {2, 5} mod 7. |
|
+0
1
|
|
| 2, 5, 9, 12, 16, 19, 23, 26, 30, 33, 37, 40, 44, 47, 51, 54, 58, 61, 65, 68, 72, 75, 79, 82, 86, 89, 93, 96, 100, 103, 107, 110, 114, 117, 121, 124, 128, 131, 135, 138, 142, 145, 149, 152, 156, 159, 163, 166, 170
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
Except for the first term(s), a(n)=7*n-a(n-1), (with a(1)=5) [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Oct 18 2009]
|
|
FORMULA
|
a(n)=7*n-a(n-1)-7 (with a(1)=2) [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Nov 24 2009]
|
|
EXAMPLE
|
For n=2, a(2)=7*2-2-7=5; n=3, a(3)=7*3-5-7=9; n=4, a(4)=7*4-9-7=12 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Nov 24 2009]
|
|
CROSSREFS
|
Sequence in context: A099434 A108165 A063957 this_sequence A086814 A086343 A056549
Adjacent sequences: A047382 A047383 A047384 this_sequence A047386 A047387 A047388
|
|
KEYWORD
|
nonn,new
|
|
AUTHOR
|
N. J. A. Sloane (njas(AT)research.att.com).
|
|
|
Search completed in 0.002 seconds
|
