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A078828 Product of all primes contained as binary substrings in binary representation of n. 1

%I #3 Mar 30 2012 18:50:29

%S 1,1,2,3,2,10,6,63,2,2,20,330,6,390,126,1323,2,34,4,114,20,100,660,

%T 159390,6,6,780,12870,126,237510,2646,861273,2,2,68,102,4,740,228,

%U 2394,20,820,200,141900,660,42900,318780,157317930,6,102,12,342,780,206700

%N Product of all primes contained as binary substrings in binary representation of n.

%e n=7: product of the A078827(7)=3 primes as binary substrings in binary representation of 7 -> '111': a(7) = '11'*'11'*'111' = 3*3*7 = 63.

%Y Cf. A078827, A078822, A007088.

%K nonn,base

%O 0,3

%A _Reinhard Zumkeller_, Dec 08 2002

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Last modified August 26 17:11 EDT 2024. Contains 375462 sequences. (Running on oeis4.)