login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A173870 Consider each term k contained in A114994; write 2k if and only if 2k is not a member of A114994. 0
6, 14, 20, 22, 30, 38, 46, 62, 70, 72, 78, 84, 86, 94, 126, 134, 142, 148, 150, 158, 174, 190, 254, 262, 270, 272, 276, 278, 286, 294, 302, 318, 340, 342, 350, 382, 510, 518, 526, 532, 534, 542, 550, 558, 574, 584, 590, 596, 598, 606, 638, 686, 702, 766, 1022 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Recall that A114994 can be regarded as a table with row lengths A000041(n).

Likewise, a(n) has row lengths 0,1,1,3,3,7,8,14,18,28,35,53,67,... which appears to coincide with sequence A117989.

The row lengths also match 1 2 3 5 7 11 15 22 ... minus 1 1 2 2 4 4 7 8 ... - Alford Arnold, Mar 30 2010

LINKS

Table of n, a(n) for n=0..54.

EXAMPLE

Row three of A114994 is 4,5,7 when doubled becomes 8,10,14.

8 and 10 are in A114994 so not in a(n); 14 is not in A114994 so is in a(n).

CROSSREFS

Cf. A000041 A114994 A117989 (A125106, A126441, A161924)(3 closely related sequences).

Cf. A002865 [From Alford Arnold, Mar 30 2010]

Sequence in context: A255217 A048747 A175678 * A101567 A123267 A236928

Adjacent sequences:  A173867 A173868 A173869 * A173871 A173872 A173873

KEYWORD

nonn,tabf

AUTHOR

Alford Arnold, Mar 01 2010

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 April 16 09:04 EDT 2021. Contains 343030 sequences. (Running on oeis4.)