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 A332447 a(n) = A007814(A087808(n)). 2
 0, 1, 1, 2, 0, 2, 0, 3, 0, 1, 2, 3, 0, 1, 2, 4, 0, 1, 1, 2, 0, 3, 0, 4, 0, 1, 1, 2, 0, 3, 0, 5, 0, 1, 1, 2, 0, 2, 0, 3, 0, 1, 3, 4, 0, 1, 1, 5, 0, 1, 1, 2, 0, 2, 0, 3, 0, 1, 3, 4, 0, 1, 1, 6, 0, 1, 1, 2, 0, 2, 0, 3, 0, 1, 2, 3, 0, 1, 3, 4, 0, 1, 1, 2, 0, 4, 0, 5, 0, 1, 1, 2, 0, 2, 0, 6, 0, 1, 1, 2, 0, 2, 0, 3, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 LINKS Antti Karttunen, Table of n, a(n) for n = 1..65537 FORMULA a(n) = A007814(A087808(n)). For n >= 0, a(2^n) = n. [These are the first occurrences of each n] PROG (PARI) A087808(n) = if(n<1, 0, if(n%2==0, 2*A087808(n/2), A087808((n-1)/2)+1)); A332447(n) = valuation(A087808(n), 2); CROSSREFS Cf. A007814, A087808, A332448. Cf. A000079 (positions of records), A079523 (of zeros). Sequence in context: A162660 A324848 A090330 * A132747 A301979 A183063 Adjacent sequences:  A332444 A332445 A332446 * A332448 A332449 A332450 KEYWORD nonn AUTHOR Antti Karttunen, Feb 14 2020 STATUS approved

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Last modified March 29 03:09 EDT 2020. Contains 333104 sequences. (Running on oeis4.)