This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A245193 #16 Feb 25 2022 10:30:35 %S A245193 11,3,7,19,11,13,17,19,31,233,37,139,71,73,277,79,191,193,97,199,2111, %T A245193 113,1117,3119,131,4133,137,139,1171,173,4177,179,191,193,197,199,311, %U A245193 313,317,1319,331,2333,337,2339,2371,373,2377,379,3391,2393,397,1399 %N A245193 Smallest prime having in decimal representation A136333(n) as suffix. %C A245193 a(n) = A136333(n) iff A136333(n) itself is a prime number, cf. A091633. %H A245193 Reinhard Zumkeller, <a href="/A245193/b245193.txt">Table of n, a(n) for n = 1..1000</a> %e A245193 . n | a(n) | A136333(n) %e A245193 . ------+---------+----------- %e A245193 . 10 | 233 | 33 %e A245193 . 11 | 37 | 37 %e A245193 . 12 | 139 | 39 %e A245193 . 13 | 71 | 71 %e A245193 . 14 | 73 | 73 %e A245193 . 15 | 277 | 77 %e A245193 . 16 | 79 | 79 %e A245193 . 17 | 191 | 91 %e A245193 . 18 | 193 | 93 %e A245193 . 19 | 97 | 97 %e A245193 . 20 | 199 | 99 %e A245193 . 21 | 2111 | 111 %e A245193 . 22 | 113 | 113 %e A245193 . 23 | 1117 | 117 %e A245193 . 24 | 3119 | 119 %e A245193 . 25 | 131 | 131 %e A245193 . 26 | 4133 | 133 %e A245193 . 27 | 137 | 137 %e A245193 . 28 | 139 | 139 %e A245193 . 29 | 1171 | 171 %e A245193 . 30 | 173 | 173 . %o A245193 (Haskell) %o A245193 import Data.List (isSuffixOf); import Data.Function (on) %o A245193 a245193 n = head [p | p <- a000040_list, %o A245193 (isSuffixOf `on` show) (a136333 n) p] %o A245193 (PARI) isok(m) = my(d=digits(m)); apply(x->gcd(x, 10), d) == vector(#d, k, 1); \\ A136333 %o A245193 f(m) = my(p=nextprime(m), s=10^#Str(m)); while ((p-m) % s, p = nextprime(p+1)); p; %o A245193 lista(nn) = apply(x->f(x), select(isok, [1..nn])); %o A245193 lista(1000) \\ _Michel Marcus_, Feb 25 2022 %Y A245193 Cf. A000040, A091633, A136333. %K A245193 nonn,base %O A245193 1,1 %A A245193 _Reinhard Zumkeller_, Jul 18 2014