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A368901
The least common multiple of the first n terms of Doudna sequence, A005940.
3
1, 1, 2, 6, 12, 60, 60, 180, 360, 2520, 2520, 2520, 2520, 12600, 12600, 37800, 75600, 831600, 831600, 831600, 831600, 831600, 831600, 831600, 831600, 5821200, 5821200, 5821200, 5821200, 29106000, 29106000, 87318000, 174636000, 2270268000, 2270268000, 2270268000, 2270268000, 2270268000, 2270268000, 2270268000, 2270268000
OFFSET
0,3
FORMULA
a(0) = 1, and for n > 0, a(n) = lcm(A005940(n), a(n-1)).
a(0) = 1, and for n > 0, a(n) = A368900(n) * a(n-1).
PROG
(PARI)
A005940(n) = { my(p=2, t=1); n--; until(!n\=2, if((n%2), (t*=p), p=nextprime(p+1))); (t) };
A368901(n) = lcm(vector(n, i, A005940(i)));
CROSSREFS
Cf. also A003418.
Sequence in context: A343277 A341617 A083268 * A225628 A284650 A085911
KEYWORD
nonn
AUTHOR
STATUS
approved