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Fungrim entry: 4fa169

π(n)=A000720 ⁣(n)\pi(n) = \text{A000720}\!\left(n\right)
Assumptions:n∈Z≥0n \in \mathbb{Z}_{\ge 0}
References:
  • Sequence A000720 in Sloane's On-Line Encyclopedia of Integer Sequences (OEIS)
TeX:
\pi(n) = \text{A000720}\!\left(n\right)

n \in \mathbb{Z}_{\ge 0}
Definitions:
Fungrim symbol Notation Short description
PrimePiπ(x)\pi(x) Prime counting function
SloaneAA00000X ⁣(n)\text{A00000X}\!\left(n\right) Sequence X in Sloane's OEIS
ZZGreaterEqualZ≥n\mathbb{Z}_{\ge n} Integers greater than or equal to n
Source code for this entry:
Entry(ID("4fa169"),
    Formula(Equal(PrimePi(n), SloaneA("A000720", n))),
    Variables(n),
    Assumptions(Element(n, ZZGreaterEqual(0))))

Topics using this entry

Copyright (C) Fredrik Johansson and contributors. Fungrim is provided under the MIT license. The source code is on GitHub.

2021-03-15 19:12:00.328586 UTC