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 A329121 Smallest k such that m//A002275(n)//m is prime, where // denotes concatenation, A002275(n) is the n-th repunit (R_n) and m = k+10^(A006519(n)-1). 1
 0, 2, 3, 16, 73, 18, 7, 28, 117, 72, 7, 2, 7, 2, 33, 10, 29, 0, 21, 10, 191, 0, 1133, 30, 79, 20, 81, 58, 19, 2, 57, 116, 77, 108, 79, 48, 97, 40, 1043, 42, 47, 86, 13, 52, 149, 82, 47, 56, 9, 80, 41, 42, 61, 86, 51, 68, 311, 262, 1001, 222, 7, 496, 1367, 12 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS a(n) = A263182(n) - 10^(A006519(n)-1). We use the convention that A007814(0) = 0 and A006519(0) = 1. a(A004023(n)-2) = 0. LINKS Chai Wah Wu, Table of n, a(n) for n = 0..5007 CROSSREFS Cf. A002275, A004023, A006519, A007814, A263182. Sequence in context: A052858 A191416 A209004 * A368765 A073997 A007118 Adjacent sequences: A329118 A329119 A329120 * A329122 A329123 A329124 KEYWORD nonn,base AUTHOR Chai Wah Wu, Nov 05 2019 STATUS approved

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Last modified February 29 21:35 EST 2024. Contains 370428 sequences. (Running on oeis4.)