31542

Appears in sequences

• T(n, 2*n-5), T given by A027960.at n=18A027967
• Triangle read by rows, T(n,k) for 0<=k<=n, generalizing A098742.at n=39A216916
• Coefficients of the generalized continued fraction expansion of the inverse of Euler constant, 1/gamma = a(1) +a(1)/(a(2) +a(2)/(a(3) +a(3)/(a(4) +a(4)/....))).at n=15A233585
• Numbers n such that A182134(n) = 3, i.e., there exist only three primes p with prime(n) < p < prime(n)^(1 + 1/n).at n=47A246781
• Number of (n+1) X (2+1) arrays of permutations of 0..n*3+2 with each element having directed index change 1,1 2,2 -1,0 or 0,-1.at n=14A264649
• Decimal encoding T(n,k) of the k-th non-averaging permutation of [n]; triangle T(n,k), n >= 0, k = 1..A003407(n), read by rows.at n=27A292523
• Number of nX4 0..1 arrays with every element unequal to 0, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.at n=19A305043
• a(n) is the number of ways to place non-attacking queens on an n X n board with no queens above the main diagonal.at n=10A359032