A069459 a(n) = prime(n)^n - 1.
1, 8, 124, 2400, 161050, 4826808, 410338672, 16983563040, 1801152661462, 420707233300200, 25408476896404830, 6582952005840035280, 925103102315013629320, 73885357344138503765448, 12063348350820368238715342, 3876269050118516845397872320, 1271991467017507741703714391418
Offset: 1
Keywords
Examples
a(16) = A062457(n) - 1 = A000040(16)^16 - 1 = 53^16-1 = = 3876269050118516845397872320 = = 2^6*3^3*5*13*17*281*232073*31129845205681.
Links
- G. C. Greubel, Table of n, a(n) for n = 1..300
Programs
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Magma
[NthPrime(n)^n - 1: n in [1..25]]; // G. C. Greubel, Apr 22 2018
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Mathematica
Table[Prime[n]^n - 1, {n, 1, 25}] (* G. C. Greubel, Apr 22 2018 *)
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PARI
for(n=1, 25, print1(prime(n)^n - 1, ", ")) \\ G. C. Greubel, Apr 22 2018
Comments