2877651

Appears in sequences

• Number of quaternary codes of length 5 with n words.at n=6A034236
• Number of quaternary codes (not necessarily linear) of length n with 6 words.at n=4A034243
• G.f.: A(x) = exp( Sum_{n>=1} A162415(n)^2*x^n/n ) where A162415 is defined by: Sum_{n>=0} x^(2^n-1) = exp( Sum_{n>=1} A162415(n)*x^n/n ).at n=19A162416