OFFSET
1,1
COMMENTS
Superset of A134951, mountain primes.
Question: How many terms are in this sequence?
The last term is a(7145) = 134567897654321. - Giovanni Resta, Mar 19 2013
LINKS
Giovanni Resta, Table of n, a(n) for n = 1..7145 (full sequence)
EXAMPLE
Illustration of 136973 as a generalized mountain prime:
. . . 9 . .
. . . . . .
. . . . 7 .
. . 6 . . .
. . . . . .
. . . . . .
. 3 . . . 3
. . . . . .
1 . . . . .
CROSSREFS
KEYWORD
base,fini,full,nonn
AUTHOR
Omar E. Pol, Nov 13 2009, Nov 15 2009
EXTENSIONS
More terms provided. Harvey P. Dale, Aug 19 2010
a(37)-a(47) corrected by Giovanni Resta, Mar 19 2013
STATUS
approved