login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A139022 a(n) = sum{k=0 to n} A139021(k). 2
2, 5, 16, 29, 256, 563, 1024, 1487, 4096, 6779, 65536, 124367, 262144, 400151, 17179869184, 34359339617, 274877906944, 515396474423, 19807040628566084398385987584, 39614081257132168281375501017, 324518553658426726783156020576256, 648997493235596321398030665669353 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

By definition, every term is a power of a prime.

For all n >= 0, a(2n) = 2^m, m >= 1.

LINKS

Table of n, a(n) for n=0..21.

CROSSREFS

Cf. A139020, A139021.

Sequence in context: A137997 A213359 A323006 * A196025 A174988 A053683

Adjacent sequences:  A139019 A139020 A139021 * A139023 A139024 A139025

KEYWORD

nonn

AUTHOR

Leroy Quet, Apr 06 2008

EXTENSIONS

a(5)-a(19) from Donovan Johnson, Nov 26 2008

a(20)-a(21) from Max Alekseyev, Oct 14 2012

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 October 17 12:33 EDT 2019. Contains 328112 sequences. (Running on oeis4.)