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 A119424 Length of primes formed by the initial decimal digits of the base e expansion of Pi. 0
 3, 18, 84, 373, 1410 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE a(1) = 3 because the first 3 digits of the base e expansion of Pi are 10.1 [meaning pi ~ 1*(e^1) + 0*(e^0) + 1*(e^-1)] and 101 (base 10) is prime. a(2) = 18 because the first 18 digits of the base e expansion of Pi are 1, 0, 1010020200021111 which (base 10) is prime. a(3) = 84 because there are 84 digits in 101010020200021111200201011200010102020001110120200101200020011011201012100100021001 which is prime. CROSSREFS Cf. A000040, A005042, A050948. Sequence in context: A099012 A122069 A103897 * A301996 A218924 A037295 Adjacent sequences:  A119421 A119422 A119423 * A119425 A119426 A119427 KEYWORD base,nonn AUTHOR Jonathan Vos Post, Jul 26 2006 STATUS approved

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Last modified July 26 20:56 EDT 2021. Contains 346300 sequences. (Running on oeis4.)