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

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A122641 {2n+1}_n. 0
3, 5, 7, 9, 6, 9, 12, 15, 18, 21, 25, 29, 33, 37, 46, 51, 56, 61, 66, 81, 87, 93, 99, 105, 126, 133, 140, 147, 154, 181, 189, 197, 205, 213, 246, 255, 264, 273, 282, 321, 331, 341, 351, 361, 406, 417, 428, 439, 450, 2501, 2604, 2709, 2816, 2925, 3081, 3195, 3311, 3429, 3549 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See A122618 for notation.

LINKS

Table of n, a(n) for n=1..59.

MATHEMATICA

Table[FromDigits[IntegerDigits[2n+1], n], {n, 60}] (* Harvey P. Dale, May 08 2015 *)

CROSSREFS

Sequence in context: A065271 A213542 A029657 * A140977 A161821 A317509

Adjacent sequences:  A122638 A122639 A122640 * A122642 A122643 A122644

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, Sep 21 2006

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 December 3 11:58 EST 2021. Contains 349462 sequences. (Running on oeis4.)