A085303 Positions of 2 in A085301.

1, 2, 7, 10, 14, 17, 20, 23, 27, 30, 33, 37, 40, 43, 47, 50, 53, 57, 60, 63, 67, 70, 73, 77, 80, 84, 87, 90, 94, 97, 101, 104, 108, 111, 114, 118, 121, 125, 128, 132, 135, 139, 142, 146, 149, 153, 156, 160, 164, 167, 171, 174, 178, 181, 185, 188, 192, 196, 199, 203

Offset

1,2

Links

Table of n, a(n) for n=1..60.

Formula

Solutions to {x; A085301(x)=2}.

Example

In A085301(x)=2 means that between primorial[x-1] and primorial[x]
two distinct factorial-numbers arise:
between [9th,10th] primorials [12!,13! ],
between [13th,14th] primorials occur: [17!,18! ],
between [583rd,584th] primorials occur: [745!,746! ];
so 10,14,..,584 are here.

Crossrefs

Cf. A085301, A002110, A000142.

Sequence in context: A003158 A130336 A303741 * A304799 A349499 A022886

Adjacent sequences: A085300 A085301 A085302 * A085304 A085305 A085306

Keyword

nonn

Author

Labos Elemer, Jun 26 2003

Status

approved