The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A190045 Number of nondecreasing arrangements of 8 numbers in 0..n with the last equal to n and each after the second equal to the sum of one or two of the preceding three 1

%I

%S 2,14,22,53,45,107,60,164,100,189,99,311,121,251,241,358,146,447,167,

%T 495,339,381,208,753,276,470,396,674,268,860,289,760,500,602,469,1131,

%U 326,690,576,1130,372,1150,386,1020,849,813,430,1595,499,1090,769,1215,482

%N Number of nondecreasing arrangements of 8 numbers in 0..n with the last equal to n and each after the second equal to the sum of one or two of the preceding three

%C Row 6 of A190041

%H R. H. Hardin, <a href="/A190045/b190045.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for n=3

%e ..1....1....1....1....0....0....1....0....2....1....3....0....1....1....0....1

%e ..1....1....1....2....1....1....1....1....3....1....3....1....2....1....1....3

%e ..1....1....2....3....1....1....1....1....3....1....3....1....2....1....1....3

%e ..1....2....2....3....1....2....1....1....3....1....3....1....3....1....2....3

%e ..1....3....3....3....2....3....2....2....3....1....3....1....3....1....2....3

%e ..2....3....3....3....3....3....3....2....3....1....3....2....3....2....3....3

%e ..3....3....3....3....3....3....3....3....3....2....3....3....3....2....3....3

%e ..3....3....3....3....3....3....3....3....3....3....3....3....3....3....3....3

%K nonn

%O 1,1

%A _R. H. Hardin_ May 04 2011

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified July 25 02:16 EDT 2021. Contains 346273 sequences. (Running on oeis4.)