InverseJacobiNC[v, m] gives the inverse Jacobi elliptic function nc -1 (v \[VerticalSeparator] m).
InverseJacobiNS[v, m] gives the inverse Jacobi elliptic function ns -1 (v \[VerticalSeparator] m).
JacobiSymbol[n, m] gives the Jacobi symbol (n/m).
LogBarnesG[z] gives the logarithm of the Barnes G-function logG(z).
MoebiusMu[n] gives the Möbius function \[Mu](n).
ParabolicCylinderD[\[Nu], z] gives the parabolic cylinder function D_\[Nu] (z).
PartitionsQ[n] gives the number q (n) of partitions of the integer n into distinct parts.
Prime
(Built-in Mathematica Symbol) Prime[n] gives the n\[Null]^th prime number.
SplineClosed is an option for B-spline functions and graphics primitives that specifies whether spline curves or surfaces should be closed.
StruveH
(Built-in Mathematica Symbol) StruveH[n, z] gives the Struve function H n (z).