|
Search: id:A083003
|
|
|
| A083003 |
|
Triangle read by rows in which each term represents the total area of all the squares found in the grid described in sequence A082652. |
|
+0
4
|
|
| 1, 2, 8, 3, 14, 34, 4, 20, 54, 104, 5, 26, 74, 154, 259, 6, 32, 94, 204, 364, 560, 7, 38, 114, 254, 469, 756, 1092, 8, 44, 134, 304, 574, 952, 1428, 1968, 9, 50, 154, 354, 679, 1148, 1764, 2508, 3333, 10, 56, 174, 404, 784, 1344, 2100, 3048, 4158, 5368, 11, 62, 194
(list; table; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
FORMULA
|
T(l, c) = ( 5*l*c^4 + 20*l*c^3 + 25*l*c^2 + 10*l*c + 10*c^2 + 8*c - 3*c^5 - 10*c^4 - 5*c^3 ) / 60
|
|
EXAMPLE
|
The triangle (with columns labeled c = 1, 2, ... and rows labeled l = 1, 2, ...) begins:
1
2 8
3 14 34
4 20 54 104
5 26 74 154 259
6 32 94 204 364 560
7 38 114 254 469 756 1092
8 44 134 304 574 952 1428 1968
|
|
CROSSREFS
|
Cf. A082652, A083487.
Adjacent sequences: A083000 A083001 A083002 this_sequence A083004 A083005 A083006
Sequence in context: A076696 A011057 A082236 this_sequence A126951 A076588 A068565
|
|
KEYWORD
|
nonn,tabl
|
|
AUTHOR
|
Artemario Tadeu Medeiros da Silva (artemario(AT)uol.com.br), May 30 2003
|
|
|
Search completed in 0.002 seconds
|
