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

1, 1, 2, 3, 2, 10, 6, 63, 2, 2, 20, 330, 6, 390, 126, 1323, 2, 34, 4, 114, 20, 100, 660, 159390, 6, 6, 780, 12870, 126, 237510, 2646, 861273, 2, 2, 68, 102, 4, 740, 228, 2394, 20, 820, 200, 141900, 660, 42900, 318780, 157317930, 6, 102, 12, 342, 780, 206700

Offset: 0

Author

Reinhard Zumkeller, Dec 08 2002

Keywords

• nonn
• base

Examples

			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.
		

Crossrefs

Cf. A078827, A078822, A007088.