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!)
 A184245 Number of strings of numbers x(i=1..7) in 0..n with sum i^2*x(i)^2 equal to n^2*49 0

%I

%S 2,4,41,31,213,176,706,571,2355,1508,5431,3445,10802,6673,22692,13525,

%T 39450,21062,62786,39829,103520,54727,160264,88909,241185,123101,

%U 329276,192191,488530,242300,650781,371934,859075,437857,1241808,621669,1539413

%N Number of strings of numbers x(i=1..7) in 0..n with sum i^2*x(i)^2 equal to n^2*49

%C Row 7 of A184240

%e Some solutions for n=5

%e ..0....5....2....2....1....2....2....1....1....4....4....4....4....2....4....4

%e ..4....3....3....0....0....2....2....3....3....1....3....3....4....0....4....5

%e ..4....2....4....3....2....3....2....4....4....4....4....4....5....5....3....5

%e ..2....4....1....4....1....5....3....1....3....2....2....4....0....5....3....2

%e ..1....2....4....2....4....4....4....2....0....3....5....4....2....4....4....0

%e ..2....4....4....0....4....3....4....2....5....4....2....3....1....0....3....1

%e ..4....2....1....4....2....0....1....4....0....2....2....1....4....2....2....4

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 10 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 October 27 01:02 EDT 2020. Contains 338035 sequences. (Running on oeis4.)