The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A227892 Smaller of two consecutive palindromic primes whose product of digits is equal and nonzero. 1
 191, 1129211, 3218123, 7129217, 7718177, 125292521, 146181641, 171292171, 197292791, 198292891, 316141613, 325383523, 359292953, 767292767, 773181377, 777494777, 929292929, 946141649, 983181389, 992181299, 11222922211, 11584948511, 11942924911, 11991819911 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Shyam Sunder Gupta, Table of n, a(n) for n = 1..5000 EXAMPLE 191 is in the sequence because 191 and 313 are consecutive palindromic primes and the product of the digits of each = 9. MATHEMATICA Select[Partition[Select[Prime[Range[542*10^6]], PalindromeQ], 2, 1], Times @@ IntegerDigits[ #[[1]]] ==Times@@IntegerDigits[#[[2]]]>0&][[All, 1]] (* Harvey P. Dale, Dec 23 2022 *) CROSSREFS Cf. A230083, A007954, A053666, A230228, A230200. Sequence in context: A207218 A185716 A084003 * A118095 A155843 A187527 Adjacent sequences: A227889 A227890 A227891 * A227893 A227894 A227895 KEYWORD nonn,base AUTHOR Shyam Sunder Gupta, Oct 14 2013 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified January 29 01:41 EST 2023. Contains 359905 sequences. (Running on oeis4.)