22123

Properties

Appears in sequences

• Primes which are the concatenation of numbers n_1, n_2, n_3, in that order, with n_1 + n_2 = n_3 (leading zeros are forbidden for nonzero n_i).at n=36A067860
• a(n) = 82n^3 - 1228n^2 + 6130n - 5861.at n=11A076808
• Convolution of triangular numbers with partition numbers.at n=17A086716
• Primes in which the digit string can be partitioned into three parts such that the sum of the first two is equal to the third, and the second part is nonzero.at n=35A088291
• Primes p such that the p-1 digits of the ternary (base 3) expansion of k/p (for k=1,2,3,...,p-1) fit into the k-th row of a magic square grid of order p-1.at n=5A096660
• Primes from merging of 5 successive digits in decimal expansion of the Champernowne Constant.at n=31A104948
• Primes p such that their cubes are pandigital.at n=16A124629
• a(0) = 9; for n>0, a(n) is determined by the rule that the concatenation of the leading terms of the difference triangle is the same as the concatenation of the digits of the sequence.at n=13A125004
• The maximum integer dimension in which the volume of the hypersphere of radius n remains larger than 1.at n=35A177677
• Primes formed by concatenation (exponent then prime) of prime factorizations of the positive integers.at n=20A226095
• Number of nondecreasing -2..2 vectors of length n whose dot product with some lexicographically greater or equal nondecreasing -2..2 vector equals n.at n=24A226416
• Primes whose base-3 representation also is the base-2 representation of a prime.at n=37A235265
• Primes whose base-7 representation also is the base-4 representation of a prime.at n=53A235617
• Primes whose base-9 representation also is the base-4 representation of a prime.at n=18A235619
• Number of length 3 1..(n+1) arrays with every leading partial sum divisible by 2, 3, 5 or 7.at n=35A258634
• Primes of the form abs(82n^3 - 1228n^2 + 6130n - 5861) in order of increasing nonnegative n.at n=11A272324
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 573", based on the 5-celled von Neumann neighborhood.at n=26A272997
• Primes of the form 5*n^2 - 5*n + 13.at n=41A320752
• a(n) is the number of possible values of numbers of divisors of numbers k with Omega(k) = n.at n=48A355027
• Prime numbersat n=2480