26715
domain: N
Appears in sequences
- Number of Dyck paths of knight moves.at n=16A005223
- Number of n-node animals on f.c.c. lattice.at n=7A007198
- Number of 3's in all partitions of n.at n=36A024787
- Smallest integer > 1 which is both n-gonal and centered n-gonal.at n=35A072277
- a(n) = 74*n^2 + 1.at n=19A158742
- a(n) = n*(n^2 - 4*n + 5)/2.at n=39A162607
- Number of n X 7 binary arrays without the pattern 0 1 diagonally, vertically or antidiagonally.at n=37A188864
- a(n) = number of polynomials a_k*x^k + ... + a_1*x + a_0 with k > 0, integer coefficients, only distinct integer roots, and a_0 = p^n (p is a prime).at n=20A248348
- Numbers n such that sigma(n) is a Fibonacci number.at n=19A272412
- 38-gonal numbers: a(n) = n*(18*n-17).at n=39A282850
- Expansion of Sum_{k>=1} (-1 + Product_{j>=1} (1 + j*x^(k*j))).at n=21A318290
- Numbers whose divisors can be partitioned into two disjoint sets whose sums are consecutive Fibonacci numbers.at n=7A333677