34216
domain: N
Appears in sequences
- Seventh column (m=6) of (1,6)-Pascal triangle A096956.at n=11A097297
- a(n) = 4*(4 + 9*n^2 + 15*n).at n=30A144449
- The number of permutations that avoid the pattern 122'1', that is, out of four consecutive elements in a permutation we never have the situation that the first two elements form an ascent while the last two elements form a descent.at n=9A173385
- Monotonic ordering of set S generated by these rules: if x and y are in S and x^2-y^2>0 then x^2-y^2 is in S, and 2 and 3 are in S.at n=24A192648
- Palindromic numbers in bases 3 and 6 written in base 10.at n=11A259375
- The difference between A089580(n) and A089579(n).at n=17A275358
- Denominators of (1/8)*n*(5 + 3*n)/((1 + 3*n)*(4 + 3*n)), n >= 0.at n=30A300297
- G.f.: 1 + 1*x/(1 + 2*x^2/(1 + 3*x^3/(1 + 4*x^4/(1 + 5*x^5/(1 + ...))))).at n=25A343468
- a(0) = 397; a(n+1) = a(n)^2 if a(n) is prime, floor(a(n)/2) otherwise.at n=30A376801