35197
domain: N
Appears in sequences
- Number of partitions of n that do not contain 6 as a part.at n=42A027340
- Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 21.at n=27A051986
- a(n) = n^3 - 3*(n+3)^2.at n=34A153260
- a(n) is the number of partitions of n such that the number of parts having multiplicity > 1 is a part.at n=42A241408
- Irregular triangle read by rows. For each j, 1<=j<=n properly color the vertices of a labeled graph on [n] using each of the first j colors in the color set {c1<c2<...<cn}. Orient the edges according to the strict order on the colors. T(n,k) is the number of such directed graphs containing k descents, n>=0, 0<=k<=binomial(n,2).at n=19A381102