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.

A118750 a(n) = product[k=1..n] P(k), where P(k) is the largest prime <= 3*k. a(n) = product[k=1..n] A118749(k).

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%I A118750 #3 Mar 30 2012 18:40:37
%S A118750 3,15,105,1155,15015,255255,4849845,111546435,2565568005,74401472145,
%T A118750 2306445636495,71499814731345,2645493145059765,108465218947450365,
%U A118750 4664004414740365695,219208207492797187665,10302785752161467820255
%N A118750 a(n) = product[k=1..n] P(k), where P(k) is the largest prime <= 3*k. a(n) = product[k=1..n] A118749(k).
%C A118750 Differs from (after first term) A048599 "Partial products of the sequence (A001097) of twin primes" after 8th term. Differs from (after first term) A070826 "One half of product of first n primes A000040" after 9th term. Analogous to A118455 a(1)=1. a(n) = product{k=1..n} P(k), where P(k) is the largest prime <= k.
%Y A118750 Cf. A020482, A049653, A060266-A060268, A060264, A060265, A060308, A118455, A118456, A118748.
%K A118750 easy,nonn
%O A118750 1,1
%A A118750 _Jonathan Vos Post_, Apr 29 2006