Skip to main content (access key 's'), Skip to navigation (access key 'n'), Accessibility information (access key '0')

Back to Simple Search

Advanced Search

Match of the following rules

Add Another Rule

Contains the following math formula (red border means the formula is incomplete)

Formula preview

The search session has expired. Please query the service again.

The search session has expired. Please query the service again.

The search session has expired. Please query the service again.

The search session has expired. Please query the service again.

The search session has expired. Please query the service again.

The search session has expired. Please query the service again.

The search session has expired. Please query the service again.

The search session has expired. Please query the service again.

The search session has expired. Please query the service again.

The search session has expired. Please query the service again.

Currently displaying 1 – 5 of 5

Order by Relevance | Title | Year of publication

Nonexistence of a geometric progression that contains four triangular numbers.

Fang, Jin-Hui — 2007

Integers

Neither $\prod_{k = 1}^{n} (4 k 2 + 1)$ nor $\prod_{k = 1}^{n} (2 k (k - 1) + 1)$ is a perfect square.

Fang, Jin-Hui — 2009

Integers

Triangular numbers in geometric progression.

Chen, Yong-Gao; Fang, Jin-Hui — 2007

Integers

On $n ∣ ϕ (n) d (n) + 2$ and $n ∣ ϕ (n) σ (n) + 1$ .

Chen, Yong-Gao; Fang, Jin-Hui — 2008

Integers

On the subset sums of exponential type sequences

Yong-Gao Chen; Jin-Hui Fang; Norbert Hegyvári — 2016

Acta Arithmetica

Page 1

Download Results (CSV)