|
|
A255068
|
|
a(n) is the largest k such that A255070(k) = n.
|
|
9
|
|
|
2, 5, 6, 10, 11, 13, 14, 18, 21, 22, 23, 26, 27, 29, 30, 34, 37, 38, 42, 43, 45, 46, 47, 50, 53, 54, 55, 58, 59, 61, 62, 66, 69, 70, 74, 75, 77, 78, 82, 85, 86, 87, 90, 91, 93, 94, 95, 98, 101, 102, 106, 107, 109, 110, 111, 114, 117, 118, 119, 122, 123, 125, 126, 130, 133, 134, 138, 139, 141, 142, 146, 149, 150
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,1
|
|
LINKS
|
|
|
FORMULA
|
|
|
PROG
|
(PARI) a(n) = my(t=1); n=2*n+2; forstep(i=logint(n, 2), 0, -1, if(bittest(n, i)==t, n++; t=!t)); n-1; \\ Kevin Ryde, Mar 21 2021
|
|
CROSSREFS
|
First differences are A106836 (from its second term onward).
Sequence A341522 sorted into ascending order.
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|