The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A354142 a(n) = smallest number missing from A352808 after A352808(n) has been found. 3
1, 2, 3, 3, 3, 3, 6, 6, 6, 6, 7, 11, 11, 11, 11, 11, 11, 11, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 23, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 30, 30, 30, 30, 30, 30, 31, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
EXAMPLE
A352808 (with offset 0) begins 0,1,2,4,5,8; after A352808(0) = 0 has been found, the smallest missing number is 1, so a(0) = 1; after A352808(5) = 8 has been found, the smallest missing number is 3, so a(5) = 3.
PROG
(Python)
from itertools import count, islice
def agen(): # generator of terms
A352808lst, A352808set, mink = [0], {0}, 1
for n in count(1):
yield mink
ahalf, k = A352808lst[n//2], mink
while k in A352808set or k&ahalf: k += 1
A352808lst.append(k); A352808set.add(k)
while mink in A352808set: mink += 1
print(list(islice(agen(), 78))) # Michael S. Branicky, May 18 2022
CROSSREFS
Cf. A352808.
Sequence in context: A227246 A200924 A111913 * A210796 A305419 A075757
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, May 18 2022
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 14 04:14 EDT 2024. Contains 373393 sequences. (Running on oeis4.)