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 A290091 Filter based on 1-digits of base-3 expansion: a(n) = A278222(A289813(n)). 7
 1, 2, 1, 2, 4, 2, 1, 2, 1, 2, 6, 2, 4, 8, 4, 2, 6, 2, 1, 2, 1, 2, 4, 2, 1, 2, 1, 2, 6, 2, 6, 12, 6, 2, 6, 2, 4, 12, 4, 8, 16, 8, 4, 12, 4, 2, 6, 2, 6, 12, 6, 2, 6, 2, 1, 2, 1, 2, 4, 2, 1, 2, 1, 2, 6, 2, 4, 8, 4, 2, 6, 2, 1, 2, 1, 2, 4, 2, 1, 2, 1, 2, 6, 2, 6, 12, 6, 2, 6, 2, 6, 30, 6, 12, 24, 12, 6, 30, 6, 2, 6, 2, 6, 12, 6, 2 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Antti Karttunen, Table of n, a(n) for n = 0..19683 PROG (Scheme) (define (A290091 n) (A278222 (A289813 n))) CROSSREFS Cf. A278222, A289813, A290092, A290093. Sequence in context: A086754 A120880 A059151 * A059149 A273917 A186187 Adjacent sequences:  A290088 A290089 A290090 * A290092 A290093 A290094 KEYWORD nonn AUTHOR Antti Karttunen, Jul 25 2017 STATUS approved

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Last modified December 8 18:37 EST 2019. Contains 329865 sequences. (Running on oeis4.)