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!)
A341518 Numbers k such that the primorial base representation of their arithmetic derivative do not contain digits larger than 1. 1
0, 1, 2, 3, 5, 7, 9, 10, 11, 13, 14, 15, 16, 17, 19, 23, 28, 29, 30, 31, 37, 41, 43, 45, 47, 53, 58, 59, 61, 62, 67, 71, 73, 74, 79, 83, 87, 89, 97, 101, 103, 107, 108, 109, 112, 113, 127, 131, 136, 137, 139, 149, 151, 155, 157, 161, 163, 167, 173, 179, 181, 189, 191, 193, 197, 198, 199, 203, 209, 210, 211, 212, 217 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Numbers k for which A328390(k) <= 1, numbers k such that A003415(k) is in A276156.

Numbers k such that A327859(k) = A276086(A003415(k)) is squarefree.

LINKS

Table of n, a(n) for n=1..73.

Index entries for sequences related to primorial base

FORMULA

For all n > 2, A328390(a(n)) = A328114(A003415(a(n))) = 1.

CROSSREFS

Cf. A003415, A005117, A049345, A276086, A276156, A327859, A328114, A328390.

Positions of nonzero terms in A341517.

Cf. A000040, A327978, A328232 (subsequences).

Cf. also A327969.

Sequence in context: A175415 A304721 A063464 * A325600 A195921 A175089

Adjacent sequences:  A341515 A341516 A341517 * A341519 A341520 A341521

KEYWORD

nonn

AUTHOR

Antti Karttunen, Feb 28 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 19 14:34 EST 2022. Contains 350466 sequences. (Running on oeis4.)