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A105986 Near-repdigit semiprimes with 5 as repeated digit. 0

%I #2 Oct 02 2013 15:47:27

%S 155,355,505,515,535,545,551,553,554,559,565,655,755,955,1555,4555,

%T 5155,5255,5455,5515,5545,5554,5585,5755,5855,7555,50555,53555,55355,

%U 55551,55553,55558,55559,55565,55585,55595,55655,55855,56555,505555,545555

%N Near-repdigit semiprimes with 5 as repeated digit.

%e a(2)=355 is a term because 355 is a semiprime and all digits are equal to 5 except one.

%K base,nonn

%O 1,1

%A _Shyam Sunder Gupta_, Apr 29 2005

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Last modified March 29 10:59 EDT 2024. Contains 371277 sequences. (Running on oeis4.)