31466

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has period 73.at n=23A020412
• a(n) = 1 + (6 + (11 + (6 + n)*n)*n)*n/24.at n=28A145126
• 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), (0, 1, -1), (1, 0, 1), (1, 1, 0), (1, 1, 1)}.at n=7A151230
• Numbers k such that the half-open interval (k-5*sqrt(sqrt(k)), k] does not contain primes.at n=6A192319
• Numbers k for which there are no prime numbers in the range (k-4*sqrt(sqrt(k)), k].at n=30A192320
• Number of lower triangles of an (n+10) X (n+10) 0..6 array with new values introduced in row major order 0..6 and no element unequal to more than one horizontal or vertical neighbor.at n=1A194776
• T(n,k)=Number of lower triangles of an (n+2k-2)X(n+2k-2) 0..k array with new values introduced in row major order 0..k and no element unequal to more than one horizontal or vertical neighbor.at n=22A194778
• Number of lower triangles of a (2n)X(2n) 0..n array with new values introduced in row major order 0..n and no element unequal to more than one horizontal or vertical neighbor.at n=5A194780
• Number of lower triangles of a 5 X 5 0..n array with each element differing from all of its horizontal and vertical neighbors by one.at n=12A195001
• a(n) = 2^n - A006951(n).at n=29A264687
• Number of maximum sized subsets of {1..n} such that every pair of distinct elements has a different sum.at n=55A382398