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A158069
Primes p such that sum of digits of p - first digit of p is not prime.
1
2, 3, 5, 7, 11, 19, 29, 31, 41, 59, 61, 71, 79, 89, 101, 109, 113, 127, 131, 137, 139, 151, 157, 163, 173, 179, 181, 191, 193, 197, 199, 227, 233, 239, 251, 257, 263, 269, 271, 277, 281, 293, 313, 317, 331, 337, 353, 359, 373, 379, 397, 401, 409, 419, 431, 433
OFFSET
1,1
EXAMPLE
2 is a term because 2-2=0 is not prime.
3 is a term because 3-3=0 is not prime.
11 is a term because 1+1-1=1 is not prime.
19 is a term because 1+9-1=9 is not prime.
29 is a term because 2+9-2=9 is not prime.
CROSSREFS
Sequence in context: A105017 A214197 A083771 * A039726 A340418 A115617
KEYWORD
nonn,base,less
AUTHOR
EXTENSIONS
378 and 383 removed by R. J. Mathar, Mar 17 2009
STATUS
approved