43212

Appears in sequences

• n written in fractional base 5/4.at n=22A024634
• How the astronomical clock ("Orloj") in Prague strikes the hours (digits follow 12343212343... (A028356), n-th group adds to n).at n=11A028354
• How the astronomical clock ("Orloj") in Prague strikes the hours (digits follow 12343212343... (A028356), n-th group adds to n).at n=35A028354
• How the astronomical clock ("Orloj") in Prague would strike 1,2,3,...,24,25,.. (digits follow 12343212343... (A028356), n-th group adds to n).at n=11A028355
• Smallest multiple of n which begins with the reverse concatenation of first n natural numbers.at n=3A074159
• Numbers k such that 8*10^k + 7*R_k - 4 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=10A103090
• a(n) = 64*n^2 - 2*n.at n=25A158067
• G.f.: Sum_{n>=0} (1 + x)^(n^2) / 2^n.at n=4A265936