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 A217680 The number of iterations giving new primes for the bases of A217679. 3
 2, 2, 1, 2, 4, 4, 2, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 3 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS For bases through 5, see the EXAMPLE to A217673. For base 170, see that for A217679. This is a full listing in the form 'base:{primes}' for those in between. 20:{4332833,172223,12113,2063}, 22:{2197633,98929,9697,2017}, 25:{2548003, 73303}, 29:{1239661,33427}, 39:{438887}, 43:{371869}, 46:{173629}, 58:{244021}, 70:{145753,3433}, 85:{82903}, 88:{114229}, 89:{95881}, 98:{79357}, 99:{65921}, 103:{30529}, 105:{109883}, 108:{96323}, 116:{54751}, 119:{40283}, 122:{27541}, 126:{117973,1277}, 142:{92821}, 144:{84466}, 154:{66853} LINKS Table of n, a(n) for n=1..29. CROSSREFS Cf. A217673, A217679. Sequence in context: A048299 A232084 A261359 * A144218 A098691 A324251 Adjacent sequences: A217677 A217678 A217679 * A217681 A217682 A217683 KEYWORD nonn,base,fini,less AUTHOR James G. Merickel, Oct 10 2012 STATUS approved

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Last modified June 15 19:43 EDT 2024. Contains 373410 sequences. (Running on oeis4.)