20888

Appears in sequences

• Conjectured dimension of a module associated with the free commutative Moufang loop with n generators.at n=8A000373
• Numbers that are the sum of 6 positive 7th powers.at n=40A003373
• Smallest positive number that needs more lines when shown on a 7-segment display (digital clock) than any previous term.at n=27A038619
• Numbers whose base-12 representation has exactly 5 runs.at n=7A043654
• Where record values occur in A010371.at n=25A143617
• a(1) = 2, a(n) = (n-th-even n^3) - (sum of previous terms).at n=30A181509
• Number of (n+3) X 4 binary arrays with every 4 X 4 subblock commuting with each horizontal and vertical neighbor 4 X 4 subblock.at n=7A188097
• Number of (n+3)X11 binary arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock.at n=0A188104
• T(n,k)=Number of (n+3)X(k+3) binary arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock.at n=28A188105
• T(n,k)=Number of (n+3)X(k+3) binary arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock.at n=35A188105
• Number of n-bead necklaces labeled with numbers -3..3 allowing reversal, with sum zero and avoiding the patterns z z+1 z+2 and z z-1 z-2.at n=7A209480
• T(n,k) is the number of n-bead necklaces labeled with numbers -k..k allowing reversal, with sum zero and avoiding the patterns z z+1 z+2 and z z-1 z-2.at n=52A209485
• Smallest positive number using exactly n segments on a calculator display (when '6' and '7' are represented using 6 resp. 3 segments).at n=30A216261
• Numbers n such that prime(n) contains a substring of all the prime digits in order, i.e., "2357".at n=9A295708
• Number of nX7 0..1 arrays with every element equal to 1, 2 or 4 king-move adjacent elements, with upper left element zero.at n=18A297857
• a(n) is the determinant of the 2 X 2 matrix whose entries (when read by rows) are the n-th primes congruent to 1, 3, 5, 7 mod 8 respectively.at n=10A337145
• Number of different coefficient values in expansion of Product_{k=1..n} (1+x^(k^2)).at n=50A369786
• Expansion of e.g.f. Product_{k>=2} 1 / (1 - x^k/k).at n=8A371487