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 A343047 a(n) = A343046(n, n). 3
 0, 1, 6, 9, 12, 15, 210, 217, 246, 249, 252, 255, 420, 427, 456, 459, 492, 495, 630, 637, 666, 669, 702, 705, 840, 847, 876, 879, 912, 915, 30030, 30061, 30246, 30279, 30252, 30285, 32550, 32587, 32586, 32589, 32592, 32595, 32760, 32797, 32796, 32799, 32832 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS This sequence has similarities with A087019 and A343043. LINKS Rémy Sigrist, Table of n, a(n) for n = 0..10000 Rémy Sigrist, PARI program for A343047 FORMULA a(A002110(k)) = A002110(2*k) for any k >= 0. a(A143293(k)) = A143293(2*k) for any k >= 0. EXAMPLE For n = 2: - the primorial base representation of 2 is "10", so:          1 0        x 1 0        -----          0 0      + 1 0      -------        1 0 0 - hence a(2) = 2*3 = 6. PROG (PARI) See Links section. CROSSREFS Cf. A002110, A143293, A343046. Cf. A087019, A343043. Sequence in context: A315955 A315956 A343043 * A023040 A001474 A084806 Adjacent sequences:  A343044 A343045 A343046 * A343048 A343049 A343050 KEYWORD nonn,base AUTHOR Rémy Sigrist, Apr 05 2021 STATUS approved

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Last modified May 8 09:21 EDT 2021. Contains 343666 sequences. (Running on oeis4.)