170569
domain: N
Appears in sequences
- a(n) = (11*n + 6)^2.at n=37A017462
- a(n) = (12*n + 5)^2.at n=34A017582
- Squares with internal digits also forming a square > 0.at n=18A069701
- Squares whose internal digits form a square.at n=34A077355
- Squares for which both the sum of the digits and the product of the digits is a triangular number.at n=21A118490
- Squares of the form 4*A014574(n-1) + 1.at n=26A131706
- Squares which are the sum of two or more consecutive squares.at n=17A151557
- Squares that becomes a prime number when prefixed with a 9.at n=25A167724
- Number of 4Xn 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 0 1 and 1 1 0 vertically.at n=11A207404
- Number of subsets of {1,2,...,n-12} without differences equal to 2, 4, 6, 8, 10 or 12.at n=60A224813
- Squares which have one or more occurrences of exactly six different digits.at n=13A235721
- a(n) = a(n-1) + a(n-2) + a([n/3]) + a([2n/3]), where a(0) = 1, a(1) = 1, a(2) = 1.at n=22A298344
- a(n) = exp(2) * Sum_{i>=0} Sum_{j>=0} (-1)^(i+j) * (i*j)^n / (i! * j!).at n=10A337053
- Squares of composite numbers k that are abelian orders.at n=31A350345