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 A323506 a(n) = A323505(n) / A246660(n). 3
 1, 2, 4, 3, 8, 12, 6, 4, 16, 24, 24, 24, 12, 18, 8, 5, 32, 48, 48, 48, 48, 72, 48, 40, 24, 36, 36, 36, 16, 24, 10, 6, 64, 96, 96, 96, 96, 144, 96, 80, 96, 144, 144, 144, 96, 144, 80, 60, 48, 72, 72, 72, 72, 108, 72, 60, 32, 48, 48, 48, 20, 30, 12, 7, 128, 192, 192, 192, 192, 288, 192, 160, 192, 288, 288, 288, 192, 288, 160, 120 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Antti Karttunen, Table of n, a(n) for n = 0..16383 FORMULA a(n) = A323505(n) / A246660(n). For n > 1, a(2n) = 2*a(n). EXAMPLE This sequence can be represented as a binary tree, as both A323505 and A246660 have similar tree structures:                                        1                                        |                     ...................2....................                    4                                        3          8......../ \........12                  6........./ \.......4         / \                 / \                 / \                 / \        /   \               /   \               /   \               /   \       /     \             /     \             /     \             /     \     16       24         24       24         12       18          8       5   32  48   48  48     48  72   48  40     24  36   36  36      16 24   10  6 etc. PROG (PARI) A001511(n) = (1+valuation(n, 2)); A036987(n) = !bitand(n, 1+n); A323505(n) = if(!n, 1, if(!(n%2), 2*A323505(n/2), (A001511(n+1)+1-A036987(n))*A323505((n-1)/2))); A246660(n) = { my(i=0, p=1); while(n>0, if(n%2, i++; p = p * i, i = 0); n = n\2); p; }; A323506(n) = (A323505(n)/A246660(n)); CROSSREFS Cf. A246660, A323505. Sequence in context: A077624 A077632 A253722 * A302747 A193949 A246679 Adjacent sequences:  A323503 A323504 A323505 * A323507 A323508 A323509 KEYWORD nonn AUTHOR Antti Karttunen, Jan 16 2019 STATUS approved

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Last modified April 20 03:02 EDT 2021. Contains 343121 sequences. (Running on oeis4.)