A323504 a(n) = A322827(2n+1) / A322827(n).

2, 2, 5, 2, 5, 30, 5, 2, 5, 30, 11, 30, 5, 30, 5, 2, 5, 30, 11, 30, 11, 2310, 11, 30, 5, 30, 11, 30, 5, 30, 5, 2, 5, 30, 11, 30, 11, 2310, 11, 30, 11, 2310, 17, 2310, 11, 2310, 11, 30, 5, 30, 11, 30, 11, 2310, 11, 30, 5, 30, 11, 30, 5, 30, 5, 2, 5, 30, 11, 30, 11, 2310, 11, 30, 11, 2310, 17, 2310, 11, 2310, 11, 30, 11, 2310, 17, 2310, 17

Offset

0,1

Links

Antti Karttunen, Table of n, a(n) for n = 0..16383

Formula

a(n) = A322827(2n+1) / A322827(n).

Prog

(PARI)
A322827(n) = if(!n, 1, my(bits = Vecrev(binary(n)), rl=1, o = List([])); for(i=2, #bits, if(bits[i]==bits[i-1], rl++, listput(o, rl))); listput(o, rl); my(es=Vecrev(Vec(o)), m=1); for(i=1, #es, m *= prime(i)^es[i]); (m));
A323504(n) = A322827(n+n+1)/A322827(n);

Crossrefs

Cf. A322827, A323503.

Bisection of A323507.

Sequence in context: A093660 A093663 A319895 * A011143 A240081 A305791

Adjacent sequences: A323501 A323502 A323503 * A323505 A323506 A323507

Keyword

nonn

Author

Antti Karttunen, Jan 17 2019

Status

approved