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 A054750 Smallest prime number whose digits sum to n-th prime. 8
 2, 3, 5, 7, 29, 67, 89, 199, 599, 2999, 4999, 29989, 59999, 79999, 389999, 989999, 6999899, 8989999, 59899999, 89999999, 289999999, 799999999, 3999998999, 19999997999, 79999999999, 399999998999, 599999899999, 999998999999 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS a(n) >= A051885(A000040(n)). Indices n for which the equality holds are listed in A055019. a(n) >= A046864(n). - Michel Marcus, Nov 01 2015 LINKS Chris Caldwell and G. L. Honaker, Jr., Prime curio for 8999 EXAMPLE E.g. a(7)=89 because 8+9=17 and 17 is the 7th prime. PROG (PARI) a(n) = {my(k=2); my(p=prime(n)); while((sumdigits(k) != prime(n)), k=nextprime(k+1)); k; } \\ Michel Marcus, Nov 01 2015 CROSSREFS Cf. A000040, A067180, A046704, A046704, A046864, A068951, A007605. Sequence in context: A046864 A090712 A082257 * A048404 A052013 A269022 Adjacent sequences:  A054747 A054748 A054749 * A054751 A054752 A054753 KEYWORD base,nonn AUTHOR G. L. Honaker, Jr., Apr 24 2000 EXTENSIONS More terms from Kok Seng Chua (chuaks(AT)ihpc.nus.edu.sg), May 31 2000 Edited and extended by Robert G. Wilson v, Feb 26 2002 STATUS approved

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Last modified December 15 09:05 EST 2019. Contains 329995 sequences. (Running on oeis4.)