22922

Appears in sequences

• Expansion of q^(-1/4) * (eta(q^4) / eta(q))^2 in powers of q.at n=22A001936
• a(n) = (5*n + 1)^2 + 4*n + 1.at n=30A007533
• a(n) = (d(n)-r(n))/2, where d = A026043 and r is the periodic sequence with fundamental period (1,1,0,0).at n=48A026044
• Numbers having four 2's in base 10.at n=30A043500
• Palindromic even lucky numbers.at n=30A045960
• Composite palindromes whose sum of prime factors is palindromic (counted with multiplicity).at n=35A046354
• a(n) = a(n-1) + a(m) for n >= 4, where m = 2*n - 2 - 2^(p+1) and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = a(2) = 1 and a(3) = 2.at n=32A050031
• a(n) = a(n-1) + a(m) for n >= 4, where m = 2*n - 2 - 2^(p+1) and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = 1, a(2) = 2, and a(3) = 4.at n=31A050055
• Numbers k such that prime(k) + prime(k+1)*2 is a square.at n=30A064504
• Palindromic even numbers with an odd number of distinct prime factors.at n=27A075809
• Palindromic even numbers with exactly 3 prime factors (counted with multiplicity).at n=31A075816
• Expansion of q^(-1/4) * (eta(q) * eta(q^4)^2 / eta(q^2)^3)^2 in powers of q.at n=22A079006
• a(n) is the odd-length palindrome whose digits up to the center are those of n and whose center digit is equal to the digital root of the product of the factorial of n and the reverse of n.at n=21A082941
• Palindromes equal to the sum of a prime number with its index.at n=35A115888
• a(n) = 25*n^2 - 36*n + 13.at n=31A154355
• A008585+A029907.at n=18A172050
• Number of (n+2)X(n+2) 0..2 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime.at n=3A251811
• Number of (n+2)X(4+2) 0..2 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime.at n=3A251815
• T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime.at n=24A251819
• Number of length-(3+1) 0..n arrays with new repeated values introduced in sequential order starting with zero.at n=11A268262