18953
domain: N
Appears in sequences
- Denominators of continued fraction convergents to sqrt(310).at n=13A041585
- Numbers whose base-3 representation contains no 0's and exactly one 1.at n=38A044966
- a(n) = a(1) + a(2) + ... + a(n-1) + a(m) for n >= 4, where m = 2^(p+1) + 2 - n and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = 1, a(2) = 3, and a(3) = 1.at n=14A049965
- Interprimes which are of the form s*prime, s=11.at n=8A075286
- Largest integer not expressible as a nonnegative linear combination of n and n^2 + 1.at n=26A087908
- a(n) = 729*n - 1.at n=25A158395
- a(n) = 26*n^2 - 1.at n=26A158551
- a(n) = A175369(n^2).at n=18A175370
- Numbers having no 0's and not more than one 1 in their representation in base 3.at n=46A188341
- Permanent of the n-th principal submatrix of A204016.at n=5A204233
- Triangle read by rows in which T(n,k) is the number of permutations avoiding 132 of length n with an independent set of size k in its coregraph.at n=44A262370
- Greatest term of height n in Recamán's sequence A005132.at n=15A269832
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 625", based on the 5-celled von Neumann neighborhood.at n=25A273272
- Reversal of base-n digits of largest prime < n^3.at n=25A329931
- a(n) is the number of multisets with n primes with which an n-gon with perimeter prime(n) can be formed.at n=35A376348
- Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of B(x)^k, where B(x) is the g.f. of A381601.at n=26A381594
- G.f. A(x) satisfies A(x) = 1/(1 - x * A(x)^3 * A(x*A(x)^3)^3).at n=5A381601