A069786 Smallest k>n such that C(n+3,n)=A000332(n) divides A000332(k).

2, 3, 7, 5, 7, 53, 39, 30, 33, 52, 63, 25, 62, 32, 269, 303, 133, 54, 54, 207, 207, 549, 597, 375, 322, 231, 348, 403, 927, 989, 1053, 1054, 153, 405, 627, 663, 663, 245, 285, 902, 858, 384, 943, 987, 2159, 2253, 2349, 2447, 1222, 1272, 1323, 582, 2013, 2373

Offset

1,1

Links

Table of n, a(n) for n=1..54.

Prog

(PARI) for(s=1, 80, n=s+1; while(frac(n*(n+1)*(n+2)*(n+3)/(s*(s+1)*(s+2)*(s+3)))>0, n++); print1(n, ", "); )

Crossrefs

Sequence in context: A334126 A341717 A225403 * A128804 A223702 A120726

Adjacent sequences: A069783 A069784 A069785 * A069787 A069788 A069789

Keyword

easy,nonn

Author

Benoit Cloitre, May 01 2002

Status

approved