[go: up one dir, main page]
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!)
A342461 Number of nonzero digits when A329886(n) is written in primorial base, where A329886 is the primorial inflation of Doudna-tree. 5
1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 2, 3, 2, 3, 2, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 2, 5, 4, 3, 2, 1, 1, 1, 1, 2, 1, 2, 1, 2, 2, 2, 2, 3, 2, 3, 2, 3, 3, 3, 2, 4, 3, 3, 2, 4, 3, 4, 3, 4, 3, 4, 2, 3, 4, 4, 3, 4, 3, 4, 3, 3, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,7
LINKS
Antti Karttunen, Table of n, a(n) for n = 0..65537
Index entries for sequences related to binary expansion of n
Index entries for sequences related to primorial base
FORMULA
a(n) = A001221(A342456(n)) = A001221(A342457(n)).
a(n) = A267263(A329886(n)) = A329040(A005940(1+n)).
a(n) <= A342462(n).
For n >= 0, a(2^n) = 1.
PROG
(PARI) A342461(n) = omega(A342456(n)); \\ Other code as in A342456.
CROSSREFS
Cf. A001221, A005940, A108951, A267263, A329886, A342456, A342457, A342462.
Cf. also A324341, A329040.
Sequence in context: A015716 A308884 A101598 * A157129 A101615 A246359
Adjacent sequences: A342458 A342459 A342460 * A342462 A342463 A342464
KEYWORD
nonn
AUTHOR
Antti Karttunen, Mar 15 2021
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 August 29 18:33 EDT 2024. Contains 375518 sequences. (Running on oeis4.)