58825

Appears in sequences

• Strong pseudoprimes to base 7.at n=13A020233
• Strong pseudoprimes to base 49.at n=22A020275
• Strong pseudoprimes to base 93.at n=28A020319
• Expansion of g.f. 1/((1-x)*(1-6*x)*(1-8*x)*(1-9*x)).at n=4A023954
• a(n) = (7^n+1)/2.at n=6A034494
• Thickened cube numbers: a(n) = n*(n^2 + (n-1)^2) + (n-1)*2*n*(n-1).at n=24A050492
• a(n) = n^4/2 - n^3 + 3*n^2/2 - n + 1 = (n^2 + 1)*(n^2 - 2*n + 2)/2.at n=19A058919
• The terms of A055258 (sums of two powers of 7) divided by 2.at n=21A073218
• Number of permutations of length n which avoid the patterns 1234, 2143, 3421.at n=41A116842
• Sequence demonstrating the Pythagorean theorem.at n=3A120694
• a(n) = C(3,n) DELTA C(0,n).at n=28A147724
• Positive numbers y such that y^2 is of the form x^2+(x+137)^2 with integer x.at n=12A157213
• a(n) = ((2*n+1)^3+(-1)^n)/2.at n=24A175109
• a(n) = ((2*n + 1)^6 + 1)/2.at n=3A175113
• Number of compositions of even natural numbers into 6 parts <= n.at n=6A191489
• Number of nX7 0..3 arrays with values 0..3 introduced in row major order and no element equal to any horizontal or vertical neighbor.at n=1A198714
• T(n,k)=Number of nXk 0..3 arrays with values 0..3 introduced in row major order and no element equal to any horizontal or vertical neighbor.at n=29A198715
• T(n,k)=Number of nXk 0..3 arrays with values 0..3 introduced in row major order and no element equal to any horizontal or vertical neighbor.at n=34A198715
• T(n,k)=Number of nXk 0..5 arrays with no element equal to another within a city block distance of two, and new values 0..5 introduced in row major order.at n=37A206396
• T(n,k)=Number of nXk 0..5 arrays with no element equal to another within a city block distance of two, and new values 0..5 introduced in row major order.at n=43A206396