163836
domain: N
Appears in sequences
- a(n) = (1/12)*(n+5)*(n+1)*n^2.at n=36A014205
- [ (4th elementary symmetric function of P(n))/(2nd elementary symmetric function of P(n)) ], where P(n) = {first n+3 primes}.at n=26A024456
- a(n) = T(4,n), array T given by A048483.at n=15A048487
- Start with 1, then alternately add 2 or double.at n=30A123208
- a(n) is one fourth of the total number of free ends of 4 line segments expansion at n iterations (see Comments lines for definition).at n=30A238549
- a(n) = n*(n+1)*(7*n-6)/2.at n=36A256718
- Expansion of (x - x^2 + 2*x^3 + 2*x^4)/(1 - 3*x + 2*x^2).at n=17A270810