A091010 Numbers having no divisor d such that also d-x and d+x are divisors for some x.

1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 13, 14, 16, 17, 19, 20, 21, 22, 23, 25, 26, 27, 29, 31, 32, 33, 34, 35, 37, 38, 39, 41, 43, 44, 46, 47, 49, 50, 51, 52, 53, 55, 57, 58, 59, 61, 62, 63, 64, 65, 67, 68, 69, 70, 71, 73, 74, 76, 77, 79, 81, 82, 83, 85, 86, 87, 88, 89, 92, 93, 94

Offset

1,2

Comments

A091009(a(n)) = 0; complement of A091011.

Links

Table of n, a(n) for n=1..71.

Crossrefs

Sequence in context: A356734 A319630 A324849 * A306528 A116358 A060683

Adjacent sequences: A091007 A091008 A091009 * A091011 A091012 A091013

Keyword

nonn

Author

Reinhard Zumkeller, Dec 13 2003

Status

approved