A087160 Satisfies a(1)=1, a(2)=2, a(n+2)=a(n+1)+A087159(n)+1.

1, 2, 4, 7, 10, 14, 17, 20, 24, 27, 30, 35, 38, 41, 44, 48, 51, 54, 58, 61, 64, 69, 72, 75, 78, 82, 85, 88, 92, 95, 98, 104, 107, 110, 113, 116, 120, 123, 126, 130, 133, 136, 140, 143, 146, 151, 154, 157, 160, 164, 167, 170, 174, 177, 180, 185, 188, 191, 194

Offset

1,2

Links

Table of n, a(n) for n=1..59.

Crossrefs

Cf. A087159, A087161.

Sequence in context: A287522 A101472 A273872 * A336411 A107427 A130251

Adjacent sequences: A087157 A087158 A087159 * A087161 A087162 A087163

Keyword

nonn

Author

Paul D. Hanna, Aug 22 2003

Status

approved