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 A109163 a(n) = A019565(n-th prime). 0
 3, 6, 10, 30, 42, 70, 22, 66, 330, 770, 2310, 130, 182, 546, 2730, 1430, 6006, 10010, 102, 510, 238, 3570, 1122, 2618, 442, 2210, 6630, 9282, 15470, 4862, 510510, 114, 266, 798, 2090, 6270, 14630, 1482, 7410, 17290, 16302, 27170, 570570, 646, 3230 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE The 5th prime is 11 (decimal), which is 1011 in binary. So a(5) is the product of the primes corresponding to the 1's of 1011, 2*3*7 = 42. MATHEMATICA Table[m = 1; o = 1; k1 = Prime[k]; While[k1 > 0, k2 = Mod[k1, 2]; If[k2 == 1, m = m*Prime[o]]; k1 = (k1 - k2)/2; o = o + 1]; m, {k, 1, 55}] (* Stefan Steinerberger, Mar 19 2006 *) CROSSREFS Cf. A019565. Sequence in context: A115887 A068195 A080506 * A109490 A130760 A154134 Adjacent sequences: A109160 A109161 A109162 * A109164 A109165 A109166 KEYWORD nonn AUTHOR Leroy Quet, Aug 18 2005 EXTENSIONS More terms from Stefan Steinerberger, Mar 19 2006 STATUS approved

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Last modified December 6 16:00 EST 2022. Contains 358644 sequences. (Running on oeis4.)