A084000 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A084000

a(1) = 7; then numbers such that the concatenation a(n)a(n-1)...a(2)a(1)a(2)...a(n-1)a(n) is a prime.

7

7, 3, 9, 17, 19, 9, 93, 29, 69, 27, 37, 33, 57, 41, 31, 167, 111, 1, 3, 267, 119, 87, 121, 671, 363, 393, 87, 241, 131, 151, 29, 21, 277, 273, 219, 119, 517, 251, 433, 93, 39, 731, 1593, 321, 579, 279, 687, 691, 629, 939, 943, 831, 513, 449, 1813, 413, 187, 947, 79

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..59.

CROSSREFS

Cf. A083996, A083997, A083998, A083999, A084001.

Sequence in context: A105168 A134883 A201329 * A168197 A257324 A138859

Adjacent sequences: A083997 A083998 A083999 * A084001 A084002 A084003

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, May 23 2003

EXTENSIONS

More terms from Ray Chandler, Aug 03 2003

STATUS

approved