A080946 Numbers having exactly three divisors that are also suffixes in binary representation.

15, 27, 30, 39, 45, 51, 54, 60, 75, 78, 85, 87, 90, 99, 102, 108, 111, 119, 120, 123, 125, 135, 147, 150, 153, 156, 159, 165, 170, 171, 174, 175, 180, 183, 187, 195, 198, 204, 205, 207, 216, 219, 221, 222, 238, 240, 243, 245, 246, 250, 267, 270, 279, 285, 287

Offset

1,1

Comments

A080942(a(n))=3.

Links

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Prog

(Haskell)
a080946 n = a080946_list !! (n-1)
a080946_list = filter ((== 3) . a080942) [1..]
-- Reinhard Zumkeller, Mar 27 2014

Crossrefs

Cf. A080943, A080945, A080947, A007088, A080940, A080941.

Sequence in context: A131541 A359205 A080945 * A364168 A253056 A091236

Adjacent sequences: A080943 A080944 A080945 * A080947 A080948 A080949

Keyword

nonn,base

Author

Reinhard Zumkeller, Feb 25 2003

Status

approved