A062227
Numbers k such that the smoothly undulating palindromic number (91*10^k - 19)/99 is a prime.
Original entry on oeis.org
3, 9, 11, 17, 23, 25229
Offset: 1
Patrick De Geest and Hans Rosenthal (Hans.Rosenthal(AT)t-online.de), Jun 15 2001
k=23 -> (91*10^23 - 19)/99 = 91919191919191919191919.
A062228
Numbers k such that the smoothly undulating palindromic number (92*10^k - 29)/99 is a prime.
Original entry on oeis.org
3, 9, 195, 515, 857, 11393
Offset: 1
Patrick De Geest and Hans Rosenthal (Hans.Rosenthal(AT)t-online.de), Jun 15 2001
k=9 -> (92*10^9 - 29)/99 = 929292929.
A062229
Numbers k such that the smoothly undulating palindromic number (94*10^k - 49)/99 is a prime.
Original entry on oeis.org
5, 17, 65, 143, 551, 92981
Offset: 1
Patrick De Geest and Hans Rosenthal (Hans.Rosenthal(AT)t-online.de), Jun 15 2001
k=17 -> (94*10^17 - 49)/99 = 94949494949494949.
A062230
Numbers k such that the smoothly undulating palindromic number (95*10^k - 59)/99 is a prime.
Original entry on oeis.org
5, 17, 209, 1295
Offset: 1
Patrick De Geest and Hans Rosenthal (Hans.Rosenthal(AT)t-online.de), Jun 15 2001
k=17 -> (95*10^17 - 59)/99 = 95959595959595959.
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