cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A053823 Product of primes in n-th shell of prime spiral.

Original entry on oeis.org

2, 111546435, 10334565887047481278774629361, 36134787795296163821030157447828794735407577182650673, 83897624105100872650777504146410004512537400341032979607327005665751086721210969
Offset: 0

Views

Author

Enoch Haga, Apr 06 2000

Keywords

Comments

Write primes in a spiral: the first shell contains a single prime, 2. The next shell contains 8 primes, etc.

Examples

			a(2)=3*5*7*11*13*17*19*23=111546435, the product of the 2nd through 9th primes.

Crossrefs

Cf. A053997, A053998, A053999.

Extensions

a(5) corrected by Sean A. Irvine, Jan 16 2022
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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