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 A217875 Primes which have the same (base 10) digital sum A007953 as the next smaller and next larger prime. 1
 22229, 25391, 69557, 107563, 111409, 167953, 200843, 202309, 208609, 217271, 221891, 236609, 238591, 250091, 250343, 274609, 290557, 355591, 373091, 382391, 404291, 407119, 415409, 417419, 439063, 441229, 447943, 515191, 542873, 581891, 582119, 591691, 614963 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS M. F. Hasler, Table of n, a(n) for n = 1..733 (all terms below 10^7). C. Caldwell (Ed.), 22229 (another Prime Pages' Curiosity). PROG (PARI) {q=r=0; forprime(p=1, default(primelimit), (p-q)%18==0 & (q-r)%18==0 & A007953(p)==A007953(q) & A007953(p)==A007953(r) & print1(q", "); r=q; q=p)} CROSSREFS A subsequence of A066540. Sequence in context: A209396 A210295 A060109 * A253737 A185608 A204148 Adjacent sequences: A217872 A217873 A217874 * A217876 A217877 A217878 KEYWORD nonn,base AUTHOR M. F. Hasler, Oct 13 2012 STATUS approved

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Last modified February 5 03:48 EST 2023. Contains 360082 sequences. (Running on oeis4.)