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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.

A354221 a(n) is the numerator of the sum of reciprocals of the 2*n+1 consecutive primes starting with A353534(n).

Table of values

n a(n)
1 31
2 2927
3 24749279
4 52404847006669763041
5 264723826652711
6 25709009860910962769666716861
7 31275582984007762166936591
8 9357116090687897728867556889841
9 13585328068403621603022853
10 4395564666287059721647967305937566473834609232641255659809
11 15360643606799479140185671512081451

List of values

[31, 2927, 24749279, 52404847006669763041, 264723826652711, 25709009860910962769666716861, 31275582984007762166936591, 9357116090687897728867556889841, 13585328068403621603022853, 4395564666287059721647967305937566473834609232641255659809, 15360643606799479140185671512081451]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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