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 A025621 Numbers of form 4^i*10^j, with i, j >= 0. 12
 1, 4, 10, 16, 40, 64, 100, 160, 256, 400, 640, 1000, 1024, 1600, 2560, 4000, 4096, 6400, 10000, 10240, 16000, 16384, 25600, 40000, 40960, 64000, 65536, 100000, 102400, 160000, 163840, 256000, 262144, 400000, 409600, 640000, 655360, 1000000, 1024000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Charles R Greathouse IV, Table of n, a(n) for n = 1..10000 PROG (PARI) list(lim)=my(v=List(), N); for(n=0, logint(lim\=1, 10), N=10^n; while(N<=lim, listput(v, N); N<<=2)); Set(v) \\ Charles R Greathouse IV, Jan 10 2018 CROSSREFS Sequence in context: A009883 A163389 A172126 * A056486 A233452 A061682 Adjacent sequences:  A025618 A025619 A025620 * A025622 A025623 A025624 KEYWORD easy,nonn AUTHOR STATUS approved

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Last modified May 24 01:29 EDT 2019. Contains 323528 sequences. (Running on oeis4.)