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A082435
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Palindromic primes with middle digit 0.
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3
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101, 16061, 31013, 35053, 38083, 73037, 74047, 91019, 94049, 1120211, 1150511, 1160611, 1180811, 1190911, 1250521, 1280821, 1300031, 1360631, 1390931, 1490941, 1520251, 1550551, 1580851, 1600061, 1630361, 1640461, 1660661
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OFFSET
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1,1
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LINKS
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PROG
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(Magma) [ p: p in PrimesUpTo(200000000) | IsOdd(d) and D[(d+1) div 2] eq 0 and D eq Reverse(D) where d is #D where D is Intseq(p) ]; // Vincenzo Librandi, Apr 12 2011
(PARI) for(m=2, 5, forstep(j=10^(m-1), 10^m-1, 10, d=digits(j); p=fromdigits(vector(2*m-1, x, if(x<m, d[x], d[2*m-x]))); isprime(p)&&print1(p, ", "))) \\ Jeppe Stig Nielsen, Feb 20 2021
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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