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!)
A156246 a(n)=sum(k=1,n,A000002(2*k-1)) 0
1, 3, 4, 5, 7, 9, 10, 12, 13, 15, 17, 18, 19, 21, 22, 23, 25, 27, 28, 30, 31, 32, 34, 36, 37, 38, 40, 41, 43, 44, 45, 47, 49, 50, 52, 53, 54, 56, 58, 59, 61, 63, 64, 66, 68, 69, 71, 72, 73, 75, 76, 77, 79, 81, 82, 84, 85, 86, 88, 90, 91, 93, 94, 96, 98, 99, 100, 102, 103, 105 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..70.

CROSSREFS

Sequence in context: A184419 A285970 A189665 * A136014 A112930 A224985

Adjacent sequences:  A156243 A156244 A156245 * A156247 A156248 A156249

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Feb 07 2009

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 May 14 12:18 EDT 2021. Contains 343882 sequences. (Running on oeis4.)