A175008 Positions of negative terms in A131389.

4, 7, 8, 10, 13, 15, 16, 19, 21, 23, 24, 27, 28, 31, 32, 35, 37, 39, 41, 43, 44, 46, 49, 51, 53, 55, 56, 59, 61, 63, 65, 67, 68, 71, 72, 75, 77, 79, 81, 83, 85, 87, 88, 90, 92, 94, 97, 99, 101, 103, 105, 107, 108, 111, 113, 115, 117, 119, 121, 123, 125, 127, 129, 132, 133

Offset

1,1

Comments

Is a(n+1)-a(n) always 1,2 or 3?

Links

Table of n, a(n) for n=1..65.

Example

The first 20 terms of A131389 are
0,1,2,-1,3,4,-2,-3,6,-4,5,7,-5,8,-6,-7,9,10,-8,11.
Positions occupied by negatives are
4,7,8,10,13,15,16,19.

Crossrefs

Cf. A131389, A175007.

Sequence in context: A091158 A175553 A284684 * A336408 A286401 A084791

Adjacent sequences: A175005 A175006 A175007 * A175009 A175010 A175011

Keyword

nonn

Author

Clark Kimberling, Apr 03 2010

Status

approved