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A166675 Totally multiplicative sequence with a(p) = 7p+2 for prime p. 1

%I #8 May 22 2016 12:57:36

%S 1,16,23,256,37,368,51,4096,529,592,79,5888,93,816,851,65536,121,8464,

%T 135,9472,1173,1264,163,94208,1369,1488,12167,13056,205,13616,219,

%U 1048576,1817,1936,1887,135424,261,2160,2139,151552,289,18768,303,20224

%N Totally multiplicative sequence with a(p) = 7p+2 for prime p.

%H G. C. Greubel, <a href="/A166675/b166675.txt">Table of n, a(n) for n = 1..10000</a>

%F Multiplicative with a(p^e) = (7p+2)^e. If n = Product p(k)^e(k) then a(n) = Product (7*p(k)+2)^e(k).

%t a[1] = 1; a[n_] := (fi = FactorInteger[n]; Times @@ ((7*fi[[All, 1]] + 2)^fi[[All, 2]])); Table[a[n], {n, 1, 100}] (* _G. C. Greubel_, May 22 2016 *)

%K nonn,mult

%O 1,2

%A _Jaroslav Krizek_, Oct 18 2009

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Last modified July 5 09:25 EDT 2024. Contains 374018 sequences. (Running on oeis4.)