139100

Appears in sequences

• Expansion of (2 + x + x^2)/((1 - x)*(1 - x - x^2)).at n=21A026390
• Structured deltoidal hexacontahedral numbers (vertex structure 9).at n=19A100166
• Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n and having k primitive non-Dyck factors (n>=0; 0<=k<=floor((n+1)/3)).at n=26A129157
• Number of compositions of n into parts with distinct multiplicities and with exactly ten parts.at n=13A321780