|
Search: id:A154724
|
|
|
| A154724 |
|
Triangle read by rows in which row n lists 2n-1 terms: n, in the center of the row and the pairs of prime numbers that are equidistant to n, with 0's inserted, as shown below in the example. |
|
+0
12
|
|
| 1, 0, 2, 0, 0, 0, 3, 0, 0, 0, 0, 3, 4, 5, 0, 0, 0, 0, 3, 0, 5, 0, 7, 0, 0, 0, 0, 0, 0, 5, 6, 7, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 7, 0, 0, 0, 11, 0, 0, 0, 0, 3, 0, 5, 0, 0, 8, 0, 0, 11, 0, 13, 0, 0, 0, 0, 0, 0, 5, 0, 7, 0, 9, 0, 11, 0, 13, 0, 0, 0, 0
(list; graph; listen)
|
|
|
OFFSET
|
1,3
|
|
|
EXAMPLE
|
Triangle begins:
. . . . . . . . . . . . . . .1
. . . . . . . . . . . . . 0, 2, 0
. . . . . . . . . . . .0, 0, 3, 0, 0
. . . . . . . . . . 0, 0, 3, 4, 5, 0, 0
. . . . . . . . .0, 0, 3, 0, 5, 0, 7, 0, 0
. . . . . . . 0, 0, 0, 0, 5, 6, 7, 0, 0, 0, 0
. . . . . .0, 0, 3, 0, 0, 0, 7, 0, 0, 0,11, 0, 0
. . . . 0, 0, 3, 0, 5, 0, 0, 8, 0, 0,11, 0,13, 0, 0
. . .0, 0, 0, 0, 5, 0, 7, 0, 9, 0,11, 0,13, 0, 0, 0, 0
. 0, 0, 3, 0, 0, 0, 7, 0, 0,10, 0, 0,13, 0, 0, 0,17, 0, 0
|
|
CROSSREFS
|
Cf. A000040, A154720, A154721, A154722, A154723, A154725, A154726, A154727.
Sequence in context: A059286 A076998 A083927 this_sequence A134402 A132440 A127647
Adjacent sequences: A154721 A154722 A154723 this_sequence A154725 A154726 A154727
|
|
KEYWORD
|
easy,nonn
|
|
AUTHOR
|
Omar E. Pol (info(AT)polprimos.com), Jan 14 2009
|
|
|
Search completed in 0.002 seconds
|
