%0 Journal Article %T About a class of Calabi-Yau differential equations %A Gert Almkvist %A Michael Bogner %A Jes¨˛s Guillera %J Mathematics %D 2013 %I arXiv %X We explain an experimental method to find CY-type differential equations of order $3$ related to modular functions of genus zero. We introduce a similar class of Calabi-Yau differential equations of order $5$, show several examples and make a conjecture related to some geometric invariants. We finish the paper with a few examples of seven order. %U http://arxiv.org/abs/1310.6658v1