The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A121518 Numbers that are not the sum of the squares of distinct primes. 8
1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 26, 27, 28, 30, 31, 32, 33, 35, 36, 37, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 50, 51, 52, 54, 55, 56, 57, 59, 60, 61, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 75, 76, 77, 79, 80, 81, 82, 84, 85, 86 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
There are 2438 terms, the largest of which is 17163.
REFERENCES
See A048261.
LINKS
FORMULA
Complement of A048261.
MATHEMATICA
s={0}; Do[p=Prime[n]; s=Union[s, s+p^2], {n, PrimePi[140]}]; s=Select[s, 0<#<Prime[PrimePi[140]]^2&]; Complement[Range[s[[ -1]]], s]
CROSSREFS
Sequence in context: A191894 A284955 A093480 * A287770 A039080 A093435
KEYWORD
fini,nonn
AUTHOR
T. D. Noe, Aug 04 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 24 16:28 EDT 2024. Contains 372779 sequences. (Running on oeis4.)