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!)
A186337 Smallest integer that can be expressed as the sum of one or more consecutive semiprimes in exactly n ways. 7
4, 10, 39, 185, 417, 589, 8351, 40181, 50809, 69195, 2614377, 4044299, 27691722, 110046335, 473061053 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
a(1) = 4 = A001358(1) is the first semiprime.
a(2) = 10 = A001358(1)+A001358(2) = 4+6 = A001358(4) = 10.
a(3) = 39 = 6 + 9 + 10 + 14 = 10 + 14 + 15 = 39.
a(4) = 185 = 58 + ... + 65 = 39 + ... + 51 = 4 + ... + 33 = 185.
CROSSREFS
Sequence in context: A302183 A149203 A038168 * A100307 A238721 A077811
KEYWORD
nonn,more
AUTHOR
Alois P. Heinz, Feb 18 2011
EXTENSIONS
a(11)-a(15) from Donovan Johnson, Feb 21 2011
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 23 18:56 EDT 2024. Contains 374553 sequences. (Running on oeis4.)