A022801 -id:A022801 - cp's OEIS frontend

A023492 Duplicate of A022801.

3, 8, 10, 15, 20, 28, 41, 60, 90, 138, 215, 339, 540, 863, 1385, 2229, 3594, 5802

Offset: 0

dead

A090946 Non-Lucas numbers: complement of A000204.

0, 2, 5, 6, 8, 9, 10, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 77, 78, 79

Offset: 1

N. J. A. Sloane, Feb 28 2004

G. C. Greubel, Table of n, a(n) for n = 1..10000

Cf. A000032, A000204, A022801.

L[1]:=1: L[2]:=3: for n from 3 to 10 do L[n]:=L[n-1]+L[n-2] od: A:={seq(L[n],n=1..10)}: B:={seq(n,n=0..L[10])}: C:=B minus A; # Emeric Deutsch, Dec 14 2004

Complement[Range[0,100],LucasL[Range[10]]] (* Harvey P. Dale, Mar 21 2012 *)

def A090946(n):
    if n == 1: return 0
    def f(x):
        if x<=2: return n
        a, b, c = 1, 3, 0
        while b<=x:
            a, b = b, a+b
            c += 1
        return n+c
    m, k = n, f(n)
    while m != k: m, k = k, f(k)
    return m # Chai Wah Wu, Sep 10 2024

a(n) = A057854(n-2), n>2. - R. J. Mathar, Jan 29 2019

More terms from Emeric Deutsch, Dec 14 2004

Offset corrected by Michel Marcus, Aug 15 2017

A022802 a(n) = L(n+1) + c(n) where L(k) = k-th Lucas number and c(n) is n-th number that is 1 or not a Lucas number.

Original entry on oeis.org

4, 6, 12, 17, 26, 38, 57, 88, 136, 213, 337, 537, 860, 1383, 2227, 3592, 5800, 9372, 15151, 24501, 39629, 64106, 103710, 167791, 271474, 439236, 710680, 1149885, 1860533, 3010385, 4870884, 7881234, 12752082, 20633279, 33385323, 54018563, 87403846

Offset: 1

Clark Kimberling

nonn

Cf. A000204, A022801, A090946.

cp's OEIS Frontend

A023492 Duplicate of A022801.

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A090946 Non-Lucas numbers: complement of A000204.

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A022802 a(n) = L(n+1) + c(n) where L(k) = k-th Lucas number and c(n) is n-th number that is 1 or not a Lucas number.

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