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Strong coprimality
From OeisWiki
m |
n |
m |
n |
m |
n − 1 |
Strong coprimorial of n
The strong coprimorial (or strong phi-torial) ofn |
i |
n |
i |
n |
i |
n |
i |
n − 1 |
n = 0 |
n = 1 |
1 |
n |
i |
n |
i |
n − 1 |
The strong coprimorial (or strong phi-torial) of
n |
n |
n |
n |
n = 8 |
2, 4, 6, 8, |
7 |
3, 5 |
15 |
Sequences
A181837T (n, k) |
k |
n |
n ≥ 0 |
-
{0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, ...}
n, n ≥ 0, |
n |
-
{0, 1, 0, 0, 0, 1, 0, 2, 2, 2, 1, 6, 2, 6, 4, 4, 4, 11, 4, 12, 6, 6, 6, 18, 6, 12, 9, 14, 8, 22, 6, 22, 14, 14, 12, 20, 8, 27, 16, 20, 12, 32, 10, 34, 18, 18, 16, 42, 14, 32, 17, 26, 20, 46, 16, 32, 20, 28, 24, 54, 14, 48, 28, 32, 26, 41, 16, ...}
n, n ≥ 0 |
-
{1, 0, 0, 0, 3, 0, 9, 8, 12, 7, 37, 12, 50, 28, 36, 40, 105, 36, 132, 60, 84, 78, 217, 72, 190, 125, 201, 128, 350, 90, 393, 224, 267, 224, 366, 168, 575, 304, 408, 264, 730, 210, 807, 396, 456, 428, 1009, 336, 905, 443, ...}
n, n ≥ 0, |
n |
-
{1, 1, 1, 1, 1, 3, 1, 20, 15, 35, 7, 36288, 35, 277200, 1485, 4576, 9009, 20432412000, 5005, 1097800704000, 459459, 5912192, 2834325, 2322315553259520000, 1616615, 124672148625024, 4865140665, ...}
n, n ≥ 0, |
n |
-
{0, 0, 2, 3, 4, 4, 6, 5, 6, 7, 9, 5, 10, 7, 10, 11, 12, 6, 14, 7, 14, 15, 16, 5, 18, 13, 17, 13, 20, 7, 24, 9, 18, 19, 22, 15, 28, 10, 22, 19, 28, 9, 32, 9, 26, 27, 30, 5, 34, 17, 33, 25, 32, 7, 38, 23, 36, 29, 34, 5, 46, ...}
n, n ≥ 0 |
-
{?, ...}
n, n ≥ 0, |
n |
-
{?, ...}
See also
- Coprimality and noncoprimality
- Coprimality triangle
- Coprimorial (phi-torial)
- Noncoprimorial (co-phi-torial)
- Weak coprimality and weak noncoprimality
- Weak coprimality triangle
- Weak coprimorial (weak phi-torial)
- Weak noncoprimorial (weak co-phi-torial)