98804

Appears in sequences

• Number of binary codes of length 5 with n words.at n=13A034190
• Number of binary codes of length 5 with n words.at n=19A034190
• Number of binary codes (not necessarily linear) of length n with 13 words.at n=4A034208
• Irregular triangle read by rows: T(n,k) = number of binary codes of length n with k words (n >= 0, 0 <= k <= 2^n); also number of 0/1-polytopes with vertices from the unit n-cube; also number of inequivalent Boolean functions of n variables with exactly k nonzero values under action of Jevons group.at n=49A039754
• Irregular triangle read by rows: T(n,k) = number of binary codes of length n with k words (n >= 0, 0 <= k <= 2^n); also number of 0/1-polytopes with vertices from the unit n-cube; also number of inequivalent Boolean functions of n variables with exactly k nonzero values under action of Jevons group.at n=55A039754
• Triangle read by columns: Distinct classifications of N elements containing exactly R binary partitions.at n=39A171872
• Mutual solutions to two classification counting problems: binary block codes of wordlength J with N used words; and classifications of N elements by J partitions.at n=28A171876
• a(n) = sum of absolute values of coefficients in (1-x-x^2+x^3)^n.at n=10A192205
• Number of 2 X 2 matrices having all terms in {-n,...,0,...,n} and determinant >= 2n.at n=10A211152
• a(n) = n^4 + 3*n^3 + 2*n^2 - 2*n.at n=17A330651