22608
domain: N
Appears in sequences
- Theta series of {D_9}* lattice.at n=32A008424
- Theta series of D_9 lattice.at n=4A008431
- Theta series of {D_9}^{+} packing.at n=32A008436
- Number of ways of writing n as a sum of 9 squares.at n=8A008452
- Expansion of (theta_3(z^4)^3 + theta_2(z^4)^3)^3.at n=32A028696
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 15 ones.at n=29A031783
- Sums of distinct powers of 12.at n=28A033048
- Sums of 3 distinct powers of 12.at n=9A038493
- Numbers k such that sigma(x) = k has exactly 10 solutions.at n=31A060666
- Number of ways of writing n as a sum of n+1 squares.at n=8A066536
- a(n) = n^4 + n^3 + n^2.at n=12A100019
- Structured tetragonal anti-prism numbers.at n=26A100182
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 0), (1, 0, -1), (1, 0, 0), (1, 1, 0)}.at n=8A150324
- Numbers n such that n^1024 + (n+1)^1024 is prime.at n=38A274234
- a(n) = (A278399(n)^2 + A278400(n)^2)/2.at n=37A278420
- Triangle read by rows: T(n,k) is the number of unoriented series-parallel networks whose multigraph has n edges and k interior vertices, 0 <= k < n.at n=60A339285
- a(n) = n * (binomial(n,2) - 2).at n=36A341768
- a(n) = binomial(n^2,n) mod n^5.at n=8A371471
- Numbers that are a sum of both four and six consecutive prime numbers.at n=40A380433
- Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where A(n,k) = n! * k! * [x^n * y^k] 1 / (1 - log(1-x) * log(1-y))^2.at n=47A382799