141214768241
domain: N
Appears in sequences
- a(n) = (3^n + 1)/2.at n=24A007051
- a(n) = 2*a(n-1) + 3*a(n-2), a(0) = a(1) = 1.at n=24A046717
- Binomial transform of Jacobsthal gap sequence (A080924).at n=24A080925
- a(n) = (3^(2*n) + 1) / 2.at n=12A083884
- a(n) = 3*a(n-1) + a(n-2) - 3*a(n-3).at n=24A103425
- Number of set partitions with at most 3 blocks; number of Dyck paths of height at most 4; dimension of space of symmetric polynomials in 3 noncommuting variables.at n=25A124302
- a(n) = 3*a(n-1) - a(n-3) + 3*a(n-4), with initial values 2,5,13,40.at n=23A133448
- a(n) = 3*a(n-1) - a(n-3) + 3*a(n-4), with initial values 2,4,13,40.at n=23A133453
- a(n) = (3*3^n-(-1)^n)/2.at n=23A164907
- a(n) = (3^n+1)/(3-(-1)^n).at n=24A167205
- a(n) = 2*n*3^(n-1) - (3^n-1)/2.at n=21A176177
- a(n) is the smallest positive integer k such that 3^n+2 divides 3^(n+k)+2.at n=23A298827
- a(n) = ((2*n+1)^8 + 1)/2.at n=13A359844