|
| |
|
|
A053600
|
|
a(1) = 2; for n>=1, a(n+1) is the smallest palindromic prime with a(n) as a central substring.
|
|
6
| |
|
|
2, 727, 37273, 333727333, 93337273339, 309333727333903, 1830933372733390381, 92183093337273339038129, 3921830933372733390381293, 1333921830933372733390381293331, 18133392183093337273339038129333181
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
REFERENCES
| G. L. Honaker, Jr. and Chris K. Caldwell, Palindromic Prime Pyramids, J. RECREATIONAL MATHEMATICS, Vol. 30(3) 169-176, 1999-2000.
|
|
|
LINKS
| P. De Geest, Palindromic Prime Pyramid Puzzle by G.L.Honaker,Jr
G. L. Honaker, Jr. and Chris Caldwell, Prime Curios! 18133...33181 (35-digits)
G. L. Honaker, Jr. & C. K. Caldwell, Palindromic Prime Pyramids
G. L. Honaker, Jr. & C. K. Caldwell, Supplement to "Palindromic Prime Pyramids"
Ivars Peterson, MAA Online
|
|
|
CROSSREFS
| Cf. A000040, A002385, A047076, A052205, A034276, A046210, A052091, A052092.
Sequence in context: A062066 A174368 A082621 * A090275 A090565 A072384
Adjacent sequences: A053597 A053598 A053599 * A053601 A053602 A053603
|
|
|
KEYWORD
| base,nonn
|
|
|
AUTHOR
| G. L. Honaker, Jr. (honak3r(AT)gmail.com), Jan 20 2000
|
| |
|
|
