|
| |
|
|
A002038
|
|
Numbers dividing A002037(i) and larger than A002037(i-1), for some i>0.
(Formerly M0749 N0282)
|
|
1
|
|
|
|
1, 2, 3, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 221, 230, 231, 238, 247, 253, 255, 266, 273, 285, 286, 299, 322, 323, 330, 345, 357, 374, 385, 390, 391, 399, 418, 429, 437, 442, 455, 462, 483, 494, 506, 510, 546, 561, 570, 595, 598, 627, 646, 663, 665, 690
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
0,2
|
|
|
COMMENTS
|
Sequence constructed in van Lint's solution to problem 5412 posed by P. Erdös (in Amer. Math. Monthly, 1966), cf. reference.
|
|
|
REFERENCES
|
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
J. H. van Lint, Solution to problem 5412, Amer. Math. Monthly 74 no.7 (1967), pp. 874-875. (Available at http://www.jstor.org/stable/2315844 and in sequence A002037.)
|
|
|
LINKS
|
Table of n, a(n) for n=0..56.
|
|
|
PROG
|
(PARI) P=L=1; for(a=1, 699, a>P & forprime(p=L+1, L*=3, P*=p); P%a || print1(a", ")) \\ - M. F. Hasler, Jan 02 2013
|
|
|
CROSSREFS
|
Cf. A002037.
Sequence in context: A069813 A161336 A059096 * A032501 A093677 A086495
Adjacent sequences: A002035 A002036 A002037 * A002039 A002040 A002041
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
N. J. A. Sloane.
|
|
|
EXTENSIONS
|
Entry revised by M. F. Hasler, Jan 02 2013
|
|
|
STATUS
|
approved
|
| |
|
|
