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 A350522 a(n) = 18*n + 16. 2
 16, 34, 52, 70, 88, 106, 124, 142, 160, 178, 196, 214, 232, 250, 268, 286, 304, 322, 340, 358, 376, 394, 412, 430, 448, 466, 484, 502, 520, 538, 556, 574, 592, 610, 628, 646, 664, 682, 700, 718, 736, 754, 772, 790, 808, 826, 844, 862, 880, 898, 916, 934, 952, 970 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS Sixth column of A006370 (the Collatz or 3x+1 map) when it is interpreted as a rectangular array with six columns read by rows. LINKS Table of n, a(n) for n=0..53. Leo Tavares, Illustration: Triple Hexagonal Rings Index entries for linear recurrences with constant coefficients, signature (2,-1). FORMULA a(n) = A239129(n+1) - 1. From Stefano Spezia, Jan 04 2022: (Start) O.g.f.: 2*(8 + x)/(1 - x)^2. E.g.f.: 2*exp(x)*(8 + 9*x). a(n) = 2*a(n-1) - a(n-2) for n > 1. (End) a(n) = 3*A008588(n+1) - 2. - Leo Tavares, Sep 14 2022 MAPLE seq(18*n+16, n=0..53); MATHEMATICA Table[18n+16, {n, 0, 53}] PROG (PARI) a(n)=18*n+16 (Magma) [18*n+16: n in [0..53]]; (Maxima) makelist(18*n+16, n, 0, 53); (GAP) List([0..53], n-> 18*n+16) (Python) [18*n+16 for n in range(53)] CROSSREFS Bisection of A017245. Cf. A006370, A008600, A239129. Cf. A008588. Sequence in context: A185467 A245664 A091216 * A132760 A209377 A203446 Adjacent sequences: A350519 A350520 A350521 * A350523 A350524 A350525 KEYWORD nonn,easy AUTHOR Omar E. Pol, Jan 03 2022 STATUS approved

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Last modified November 29 07:03 EST 2023. Contains 367429 sequences. (Running on oeis4.)