|
|
A160553
|
|
Numbers n not of the form 7k+4 such that A000041(49n+47) == 0 (mod 343).
|
|
1
|
|
|
36, 37, 55, 70, 79, 84, 93, 99, 105, 111, 118, 128, 134, 138, 140, 149, 156, 161, 163, 168, 174, 180, 185, 199, 208, 230, 240, 245, 247, 254, 255, 257, 260, 278, 282, 283, 289, 299, 300, 301, 331, 363, 365, 376, 377, 384, 385, 387, 397, 400
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
LINKS
|
|
|
PROG
|
(PARI) for(n=1, 10^3, if(n%7==4, next); if( numbpart(49*n+47)%343==0, print1(n, ", ")) ) \\ Max Alekseyev, Feb 13 2012
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
EXTENSIONS
|
Watson found the terms 36, 37, 55 via A002300.
Extended to a(24)=199 using Watson's method (but with Maple's help) by N. J. A. Sloane, Nov 14 2009
|
|
STATUS
|
approved
|
|
|
|