|
| |
|
|
A186072
|
|
Irregular triangle, read by rows, of primes with suffix n and digits "1" prepended , otherwise 0.
|
|
2
|
|
|
|
11, 0, 13, 113, 0, 0, 0, 17, 0, 19, 0, 0, 0, 113, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 127, 0, 0, 0, 131, 0, 0, 0, 0, 0, 137, 0, 139, 0, 0, 0, 0, 0, 0, 0, 0, 0, 149, 0, 151, 1151, 0, 0, 0, 0, 0, 157, 0, 0, 0, 0, 0, 163, 1163, 0, 0, 0, 167, 0, 0, 0, 0, 0, 173, 0, 0, 0, 0, 0, 179
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
Row n ends when a composite number is found.
|
|
|
LINKS
|
Table of n, a(n) for n=1..82.
|
|
|
EXAMPLE
|
for k=1..2 , a(3, k) = {13, 113} are in the sequence.
|
|
|
MAPLE
|
with(numtheory): for n from 1 to 100 do:a0:=n:id:=0:c:=0:for k from 1 to 20
while (id=0) do:d:=length(a0):a1:=10^d+a0:if type(a1, prime)=true then a0:=a1:printf(`%d,
`, a0):c:=c+1:else id:=1:fi:od:if c=0 then printf(`%d, `, 0):else fi:od:
|
|
|
CROSSREFS
|
Cf. A186071 A185682, A185684, A185685, A185687.
Sequence in context: A087556 A082268 A087557 * A299780 A297873 A298136
Adjacent sequences: A186069 A186070 A186071 * A186073 A186074 A186075
|
|
|
KEYWORD
|
nonn,base,tabf
|
|
|
AUTHOR
|
Michel Lagneau, Feb 11 2011
|
|
|
STATUS
|
approved
|
| |
|
|
