|
| |
|
|
A067748
|
|
Smallest member of the first occurrence of exactly n consecutive primes whose sum of digits is also prime, or 0 if no such set of primes exists.
|
|
0
| |
|
|
101, 23, 41, 191, 2, 2063, 4133, 3251, 1493, 6558733, 5684891, 35778571, 10109291, 10489861, 2442113, 466343539, 793234063, 10158613657, 5200298339, 281201652541
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| Next term involves primes > 10000000.
|
|
|
EXAMPLE
| a(3) = 41 as 41,43,47 are the smallest triples of primes with digit sum all prime . a(5) = 2 and 2,3,5,7,11 is the set.
|
|
|
CROSSREFS
| Sequence in context: A029949 A083152 A016112 * A138719 A043639 A152054
Adjacent sequences: A067745 A067746 A067747 * A067749 A067750 A067751
|
|
|
KEYWORD
| base,hard,more,nonn
|
|
|
AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 09 2002
|
|
|
EXTENSIONS
| Corrected and extended by Larry Reeves (larryr(AT)acm.org), Dec 19 2002
a(12)-a(20) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Apr 05 2008
|
| |
|
|
