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A053586
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Primes formed by concatenating n consecutive decreasing numbers starting with a prime p(n) and ending with the previous prime p(n-1).
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1
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89888786858483, 211210209208207206205204203202201200199, 593592591590589588587, 1327132613251324132313221321, 2377237623752374237323722371, 2963296229612960295929582957
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OFFSET
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1,1
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LINKS
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EXAMPLE
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89888786858483 belongs to the sequence because it is a prime number obtained by concatenating all the consecutive decreasing numbers from 89 to 83 with the primes 89 and 83.
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MATHEMATICA
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Select[FromDigits[Flatten[IntegerDigits/@Reverse[Range[#[[1]], #[[2]]]]]]&/@Partition[ Prime[ Range[500]], 2, 1], PrimeQ] (* Harvey P. Dale, May 12 2022 *)
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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STATUS
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approved
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