A067315 Central binomial coefficient C(n, n/2) is not divisible by n.

4, 6, 8, 10, 14, 16, 18, 20, 22, 24, 26, 28, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 86, 88, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 134, 136, 138, 140

Offset

1,1

Links

Table of n, a(n) for n=1..63.

Mathematica

Select[ Range[ 2, 150, 2 ], Mod[ Binomial[ #, #/2 ], # ]>0& ]

Crossrefs

Cf. A001405, A042996, A067348.

Sequence in context: A087270 A316262 A075124 * A069148 A328144 A327888

Adjacent sequences: A067312 A067313 A067314 * A067316 A067317 A067318

Keyword

nonn

Author

Labos Elemer, Jan 14 2002

Status

approved