65568
domain: N
Appears in sequences
- Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 19 (most significant digit on right).at n=34A029512
- Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 16.at n=32A031694
- Split positive integers into extending even groups and sum: 1+2, 3+4+5+6, 7+8+9+10+11+12, 13+14+15+16+17+18+19+20, ...at n=32A061317
- Number of 2 X n 0-1 matrices avoiding simultaneously the right angled numbered polyomino patterns (ranpp) (00;1), (01;0), (10;0) and (01;1).at n=16A100314
- Duplicate of A100314.at n=16A131831
- a(n) = 256*n^2 + 2*n.at n=15A158230
- a(n) = 32*(32*n^2 + 1).at n=8A158685
- Numbers of the form A019434(i) + A000668(j).at n=22A168335
- a(n) = 32*(2^n + 1).at n=11A175163
- a(n) = n^8+8n.at n=4A180358
- Half the number of nX1 0..2 arrays with no element equal to the sum mod 3 of its horizontal and vertical neighbors.at n=16A183494
- a(n) = n*(n^3 + 2).at n=16A185065
- a(n) = 4^n + 4*n.at n=8A221906
- a(n) = 2^x+2^y where p(n) is the n-th prime of the form 4*k+1 and x, y is the unique integer solution to p(n) = x^2+y^2.at n=27A226640
- Number of involutions in the quaternion ring over Z/(2^n)Z with i^2=j^2=1.at n=6A236554