22780
domain: N
Appears in sequences
- Sums of groups in A075643.at n=32A075645
- Ten times hexagonal numbers: 10*n*(2*n-1).at n=34A144560
- a(n) = 3*a(n-3) + 3*a(n-6) + a(n-9) for n>8, a(0)=0, a(1)=a(2)=1, a(3)=a(4)=2, a(5)=3, a(6)=7, a(7)=9, a(8)=11.at n=24A237988
- Number of length n+4 0..3 arrays with no pair in any consecutive five terms totalling exactly 3.at n=7A246732
- Expansion of Product_{k>=1} 1/((1+x^k)*(1-x^k)^4).at n=13A262380
- a(n) = n^4 + 14*n^3 + 63*n^2 + 98*n + 28.at n=9A346376