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A218071 Subsequence of A217679 where iterations (giving primes through 'extended' interbase translation) reach a single digit. 0
170, 241, 256, 262, 280, 358, 408, 590, 592, 616, 646, 698, 700, 724, 728, 766, 784, 844, 897, 926, 930, 968, 970, 990, 1026, 1036, 1078, 1098, 1102, 1210, 1222, 1236, 1238 (list; graph; refs; listen; history; text; internal format)



This is a peripheral spin-off sequence--the 4th in a set--to a collection dealing with a complex of coincidences concerning interbase translation (the substitution of digits from the representation of a number in one base to another, essentially number-->polynomial-->number). The word 'extended' is in the title to distinguish between the more usual case of such translations being done from a smaller to a larger base and the opposite case where the digital substitution can only be generally done formally because of digits being greater than or equal to the second base.  See cross-referenced sequences for the initiating material. The entries here answer the question of which bases take a certain prime to a prime below that base.


Table of n, a(n) for n=1..33.


Cf. A217673, A217679, A217680.

Sequence in context: A045002 A163556 A229467 * A113789 A261550 A043690

Adjacent sequences:  A218068 A218069 A218070 * A218072 A218073 A218074




James G. Merickel, Oct 19 2012



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Last modified May 23 16:39 EDT 2022. Contains 353977 sequences. (Running on oeis4.)