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A180421
Members p of A091366 such that digit-reverse(p) is also in A091366.
1
11, 101, 113, 131, 151, 199, 311, 337, 353, 359, 373, 733, 757, 919, 953, 991, 1031, 1103, 1213, 1217, 1231, 1237, 1259, 1301, 1321, 1381, 1439, 1471, 1499, 1619, 1723, 1741, 1831, 1949, 3011, 3019, 3109, 3121, 3163, 3257, 3271, 3299, 3347, 3527, 3583, 3613, 3767
OFFSET
1,1
LINKS
FORMULA
EXAMPLE
a(10) = A091366(19) = 359 and reverse(359) = 953 = A091366(42) is again in A091366.
MAPLE
filter:= proc(n) local i, L, d, y;
if not isprime(n) then return false fi;
L:= convert(n, base, 10);
d:= nops(L);
isprime(add(L[i]^3, i=1..d)) and isprime(add(L[-i]*10^(i-1), i=1..d))
end proc:
select(filter, [seq(i, i=3..10000, 2)]); # Robert Israel, Apr 06 2021
CROSSREFS
Sequence in context: A091366 A073064 A155075 * A176179 A176196 A303570
KEYWORD
nonn,base
AUTHOR
Carmine Suriano, Sep 03 2010
EXTENSIONS
Keyword:base added and definition shortened by R. J. Mathar, Sep 23 2010
STATUS
approved