|
| |
|
|
A011974
|
|
2 followed by the numbers that are the sum of 2 successive primes.
|
|
17
|
|
|
|
2, 5, 8, 12, 18, 24, 30, 36, 42, 52, 60, 68, 78, 84, 90, 100, 112, 120, 128, 138, 144, 152, 162, 172, 186, 198, 204, 210, 216, 222, 240, 258, 268, 276, 288, 300, 308, 320, 330, 340, 352, 360, 372, 384, 390, 396, 410, 434, 450, 456, 462, 472, 480, 492, 508, 520
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
All the terms in the sequence, except for a(2), are even. - K. D. Bajpai, Aug 26 2014
|
|
|
REFERENCES
|
Archimedeans Problems Drive, Eureka, 26 (1963), 12.
|
|
|
LINKS
|
|
|
|
FORMULA
|
|
|
|
EXAMPLE
|
a(6) = 24 is in the sequence because prime(5) + prime(6) = 11 + 13 = 24.
a(8) = 36 is in the sequence because prime(7) + prime(8) = 17 + 19 = 36.
(End)
|
|
|
MATHEMATICA
|
Join[{2}, Total/@Partition[Prime[Range[40]], 2, 1]] (* Harvey P. Dale, May 04 2013 *)
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn,easy
|
|
|
AUTHOR
|
|
|
|
EXTENSIONS
|
|
|
|
STATUS
|
approved
|
| |
|
|
