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!)
A085105 Starting with prime(n) go on adding smaller primes until one gets a prime. a(n) = this prime, or 0 if no such prime exists. 1
0, 5, 0, 17, 23, 31, 41, 67, 59, 71, 83, 97, 109, 181, 131, 281, 311, 173, 439, 199, 211, 223, 373, 251, 269, 449, 883, 311, 1283, 719, 349, 587, 617, 647, 683, 439, 457, 1483, 487, 503, 839, 863, 1511, 2111, 941, 1951, 607, 1747, 661, 2203, 1123, 701, 1999 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Conjecture: Except a(3) no other term is zero.

LINKS

Table of n, a(n) for n=1..53.

EXAMPLE

prime(6) = 13 and 13+11+7 = 31 hence a(6) = 31.

CROSSREFS

Sequence in context: A321416 A226372 A093782 * A094031 A022902 A291926

Adjacent sequences:  A085102 A085103 A085104 * A085106 A085107 A085108

KEYWORD

nonn

AUTHOR

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Jul 04 2003

EXTENSIONS

Corrected and extended by David Wasserman, Jan 27 2005

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 April 21 13:57 EDT 2021. Contains 343154 sequences. (Running on oeis4.)