A073160 - OEIS

A073160

Sums of adjacent terms of A073159. Together, A073158, A073159 and A073160 include all the positive integers uniquely.

9, 17, 23, 25, 31, 42, 53, 63, 69, 71, 77, 84, 91, 102, 109, 112, 119, 127, 135, 145, 153, 157, 162, 172, 181, 185, 188, 194, 200, 204, 211, 222, 232, 239, 241, 243, 253, 258, 268, 279, 280, 288

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

a(n) is asymptotic to 7n.

LINKS

Table of n, a(n) for n=1..42.

FORMULA

a(n) = A073159(n) + A073159(n-1), where A073159(0)=0.

EXAMPLE

A073158:_1,2,4, 7, 5, 8,10,14,15,19,16,20,21,22,26,28,27,... A073159:__3,6,11,12,13,18,24,29,34,35,36,41,43,48,54,55,... A073160:___9,17,23,25,31,42,53,63,69,71,77,84,91,102,109,...

CROSSREFS

Cf. A073158, A073159.

Sequence in context: A190151 A144752 A317332 * A242987 A346146 A143850

Adjacent sequences: A073157 A073158 A073159 * A073161 A073162 A073163

KEYWORD

easy,nonn

AUTHOR

Paul D. Hanna, Jul 29 2002

STATUS

approved