|
Search: id:A069322
|
|
|
| A069322 |
|
Square array read by antidiagonals of floor[(n+k)^(n+k)/(n^n*k^k)]. |
|
+0
1
|
|
| 1, 1, 1, 1, 4, 1, 1, 6, 6, 1, 1, 9, 16, 9, 1, 1, 12, 28, 28, 12, 1, 1, 14, 45, 64, 45, 14, 1, 1, 17, 65, 119, 119, 65, 17, 1, 1, 20, 89, 198, 256, 198, 89, 20, 1, 1, 23, 117, 307, 484, 484, 307, 117, 23, 1, 1, 25, 149, 449, 837, 1024, 837, 449, 149, 25, 1, 1, 28, 184, 629
(list; table; graph; listen)
|
|
|
OFFSET
|
0,5
|
|
|
COMMENT
|
T(n,k)*sqrt(3)/(n*k*pi) provides a rough approximation for A067059.
|
|
EXAMPLE
|
Rows start: 1,1,1,1,1,1,...; 1,4,6,9,12,14,...; 1,6,16,28,45,65,...; 1,9,28,64,119,198,...; etc. T(3,5)=floor[8^8/(3^3*5^5)]=floor[16777216 /84375]=floor[198.84...]=198.
|
|
CROSSREFS
|
Initial columns and rows are A000012 and A060644, main diagonal is A000302.
Sequence in context: A144480 A144463 A131399 this_sequence A075112 A046554 A010321
Adjacent sequences: A069319 A069320 A069321 this_sequence A069323 A069324 A069325
|
|
KEYWORD
|
nonn,tabl
|
|
AUTHOR
|
Henry Bottomley (se16(AT)btinternet.com), Mar 14 2002
|
|
|
Search completed in 0.002 seconds
|
