256257

Appears in sequences

• G.f. A(x) defined by: A(x)^12 consists entirely of integer coefficients between 1 and 12 (A084067); A(x) is the unique power series solution with A(0)=1.at n=7A084212
• a(n) = n*(n^3-n^2+n+1)/2.at n=27A100855
• Number of partitions of {1,..,n} into any number of lists of size not equal to 3, where a list means an ordered subset, cf. A000262.at n=8A113236
• Number of binary strings of length n with equal numbers of 00001 and 00110 substrings.at n=19A164196