|
| |
|
|
A115559
|
|
a(n) is here if it is not a prime number and it is an integer square root of an entry taken from A115557.
|
|
3
| |
|
|
1, 316, 333, 549, 844, 963, 981, 1052, 1233, 1251, 1304, 1341, 1359, 1474, 1629, 1688, 1737, 1738, 1996, 2061, 2144, 2216, 2421, 2528, 2547, 2763, 2979, 3033, 3082, 3123, 3141, 3148, 3231, 3244, 3283, 3303, 3411, 3573, 3634, 3871, 3879, 3897, 3988, 4113
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
FORMULA
| The commutator[sigma, tau] is zero and a(n) is the square root of solutions. Moreover this square root is a nonprime number.
|
|
|
CROSSREFS
| Cf. A000005, A000203, A076360, A076361, A062068, A062069, A115557, A115559, A115560.
Sequence in context: A184468 A048905 A200314 * A033861 A179155 A101112
Adjacent sequences: A115556 A115557 A115558 * A115560 A115561 A115562
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Labos E. (labos(AT)ana1.sote.hu), Jan 25 2006
|
| |
|
|
