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A298688
a(n) is the least i such that Fibonacci(i) is divisible by i+k for all k=0..n.
1
1, 60, 60, 540, 13440, 13440, 329400, 175472640, 50238568800
OFFSET
0,2
COMMENTS
a(0)..a(5) are first terms of sequences A023172, A217738, A298684, A298685, A298686, A298687.
EXAMPLE
Least i such that Fibonacci(i) is divisible by i and i+1 (cf. A217738) is i=60, therefore a(1)=60.
Least i such that Fibonacci(i) is divisible by i, i+1, ..., i+5 (cf. A298687) is i=13440, therefore a(5)=13440.
KEYWORD
nonn,hard,more
AUTHOR
Alex Ratushnyak, Jan 24 2018
EXTENSIONS
a(7) from Alois P. Heinz, Jan 25 2018
a(6) inserted by Chai Wah Wu, Jan 26 2018
a(8) from Silvester Resnik, May 18 2018
STATUS
approved