58563

Appears in sequences

• a(n) = n*11^n - 1.at n=3A064757
• Number of elements of GF(3^n) with trace 0 and subtrace 0.at n=11A074000
• Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, -1), (-1, 0), (0, -1), (0, 1), (1, 0)}.at n=10A151426
• a(n) = 4*11^n-1.at n=4A199020
• Increasing a(n)is the smallest number of the form p^a*q^b, where a,b are positive integers and p < q are odd primes such that max( p^a, q^b)/min( p^a, q^b) <= 1 + 2/prime(n).at n=29A229108
• Numbers k such that tau(k+1) - tau(k) = 3, where tau(k) = the number of divisors of k (A000005).at n=15A230653
• a(n) = number of polynomials a_k*x^k + ... + a_1*x + a_0 with k > 0, integer coefficients, only distinct integer roots, and a_0 = p^n (p is a prime).at n=23A248348
• Number of (n+1) X (2+1) 0..2 arrays with every 2 X 2 subblock summing to 4 and no 2 X 2 subblock having exactly two nonzero entries.at n=12A251143
• Numbers k such that (43*10^k - 403)/9 is prime.at n=23A285553
• Near 2-hyperperfect numbers: numbers k such that sigma(k) - 3*k/2 - 1/2 is a proper divisor of k.at n=17A305616
• Bases in which 11 is a unique-period prime.at n=36A306076
• Numbers k such that k and k+1 are both terms in A377732.at n=28A377733