116820
domain: N
Appears in sequences
- Denominators of continued fraction convergents to sqrt(52).at n=11A041089
- First differences of (n+1)^5-n^5.at n=17A068236
- a(1)=1; thereafter, a(n+1) = 20*n^3 + 10*n.at n=18A101098
- a(n) = 729000*n - 612180.at n=0A156865
- Triangle read by rows: T(n,k) is the number of 2-compositions of n having k columns with an even sum (0<=k<=floor(n/2)).at n=37A181327