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 A245420 Number of nonnegative integers with property that their base 8/5 expansion (see A024647) has n digits. 0
 8, 8, 16, 24, 40, 64, 96, 160, 256, 408, 648, 1040, 1664, 2664, 4264, 6816, 10912, 17456, 27928, 44688, 71496, 114400, 183040, 292864, 468576, 749728, 1199560, 1919296, 3070872, 4913400, 7861440, 12578304, 20125288, 32200456, 51520728, 82433168, 131893072 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE a(2) = 8 because 50, 51, 52, 53, 54, 55, 56, and 57 are the base 8/5 expansions for the numbers 8-15 respectively and these are the only integers with 2 digits. PROG (Sage) A=[1] for i in [1..100]:     A.append(ceil(((8-5)/5)*sum(A))) [8*x for x in A] CROSSREFS Cf. A024647, A245356, A081848. Sequence in context: A186986 A112439 A309461 * A022091 A171188 A145909 Adjacent sequences:  A245417 A245418 A245419 * A245421 A245422 A245423 KEYWORD nonn,base AUTHOR Tom Edgar, Jul 21 2014 STATUS approved

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Last modified September 20 16:50 EDT 2021. Contains 347586 sequences. (Running on oeis4.)