|
|
|
|
3, 3, 3, 3, 7, 7, 7, 7, 11, 11, 11, 11, 15, 15, 15, 15, 19, 19, 19, 19, 23, 23, 23, 23, 27, 27, 27, 27, 31, 31, 31, 31, 35, 35, 35, 35, 39, 39, 39, 39, 43, 43, 43, 43, 47, 47, 47, 47, 51, 51, 51, 51, 55, 55, 55, 55, 59, 59, 59, 59, 63, 63, 63, 63, 67, 67, 67
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
FORMULA
|
a(n) = (n+3)- (n AND 3).
a(n) = (n XOR 3) + (n AND 3).
a(n) = n + ((3*n+3) mod 4).
a(n) = 4*floor((n+4)/4)-1.
|
|
MAPLE
|
with(Bits): seq(Or(n, 3), n = 1..60);
|
|
PROG
|
(Magma) [BitwiseOr(n, 3): n in [0..70]]; // Bruno Berselli, Jul 01 2014
(Python)
|
|
CROSSREFS
|
Cf. similar sequences listed in A244587.
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|