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 A114027 Composite numbers such that the n-th partial concatenation is a multiple of composite(n). 1
 4, 8, 8, 16, 10, 8, 6, 15, 20, 4, 20, 16, 12, 24, 25, 12, 8, 28, 20, 16, 44, 38, 35, 44, 16, 32, 40, 8, 32, 25, 26, 4, 35, 50, 35, 24, 6, 25, 52, 58, 56, 40, 38, 82, 24, 55, 68, 4, 68, 60, 72, 66, 75, 28, 78, 38, 40, 125, 16, 44, 90, 34, 20, 24, 60, 78, 36, 12 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE A002808(2)=6 divides 48, A002808(3)=8 divides 488, A002808(4)=9 divides 48816 etc. - R. J. Mathar, Aug 31 2007 PROG (PARI) lista(nn) = {my(m, s=""); forcomposite(k=4, nn, m=4; while(eval(Str(s, m))%k || isprime(m), m++); print1(m, ", "); s=Str(s, m)); } \\ Jinyuan Wang, May 30 2020 CROSSREFS Cf. A002808, A114028. Sequence in context: A255992 A273572 A273779 * A005877 A144174 A256816 Adjacent sequences: A114024 A114025 A114026 * A114028 A114029 A114030 KEYWORD nonn,base AUTHOR Amarnath Murthy, Nov 13 2005 EXTENSIONS Corrected and extended by R. J. Mathar, Aug 31 2007 More terms from Jinyuan Wang, May 30 2020 STATUS approved

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Last modified December 5 21:40 EST 2022. Contains 358594 sequences. (Running on oeis4.)