|
Search: id:A072561
|
|
|
| A072561 |
|
Denominators of w(n) equals 3 where w(1)=w(2)=w(3)=1, w(n)=(w(n-1)*w(n-2)+(w(n-1)+w(n-2))/3) / w(n-3). |
|
+0
4
|
|
| 1, 3, 4, 6, 7, 9, 10, 12, 13, 15, 19, 21, 22, 24, 25, 27, 28, 30, 31, 33, 37, 39, 40, 42, 43, 45, 46, 48, 49, 51, 55, 57, 58, 60, 61, 63, 64, 66, 67, 69, 73, 75, 76, 78, 79, 81, 82, 84, 85, 87, 91, 93, 94, 96, 97, 99, 100, 102, 103, 105, 109, 111, 112, 114, 115, 117, 118
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
COMMENT
|
Denominators of w(k) are 1, 3 or 9.
|
|
FORMULA
|
lim n -> infinity a(n)/n = 9/5. sequence contains numbers of form (1+18k), (3+18k), (4+18k), (6+18k), (7+18k), (9+18k), (10+18k), (12+18k), (13+18k), (15+18k) k>=0.
|
|
CROSSREFS
|
Cf. A072560, A072557.
Sequence in context: A140098 A059559 A103877 this_sequence A141206 A140100 A093610
Adjacent sequences: A072558 A072559 A072560 this_sequence A072562 A072563 A072564
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Benoit Cloitre (benoit7848c(AT)orange.fr), Aug 06 2002
|
|
EXTENSIONS
|
Corrected by Franklin T. Adams-Watters, Oct 25 2006
|
|
|
Search completed in 0.002 seconds
|
