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A213278
Least common multiple of A001175(n) and n.
2
1, 6, 24, 12, 20, 24, 112, 24, 72, 60, 110, 24, 364, 336, 120, 48, 612, 72, 342, 60, 336, 330, 1104, 24, 100, 1092, 216, 336, 406, 120, 930, 96, 1320, 612, 560, 72, 2812, 342, 2184, 120, 1640, 336, 3784, 660, 360, 1104, 1504, 48, 784, 300, 1224, 1092, 5724
OFFSET
1,2
COMMENTS
If n>1 then a(n) is even (see A001175). - Jon Maiga, Mar 25 2019
LINKS
Jon Maiga, Table of n, a(n) for n = 1..23002 (2..23002 from Lars Blomberg)
FORMULA
a(n) = lcm(A001175(n), n). - Jon Maiga, Mar 24 2019
EXAMPLE
Example with n=3:
Fib(k): 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765, 10946, 17711, 28657, 46368
Fib(k) mod 3: 0,1,1,2,0,2,2,1,0,1,1,2,0,2,2,1,0,1,1,2,0,2,2,1,0
k mod 3: 0,1,2,0,1,2,0,1,2,0,1,2,0,1,2,0,1,2,0,1,2,0,1,2,0
k increases by 24 before it realigns with Fib(k) mod 3 therefore a(3) = lcm(A001175(3), 3) = lcm(8, 3) = 24.
CROSSREFS
KEYWORD
nonn
AUTHOR
Lars Blomberg, Jun 09 2012
EXTENSIONS
Changed offset to 1, added a(1)=1 and simplified name by Jon Maiga, Mar 25 2019
STATUS
approved