33144
domain: N
Appears in sequences
- Icosahedral numbers: a(n) = n*(5*n^2 - 5*n + 2)/2.at n=23A006564
- Numbers k such that k^2 contains every digit at least once.at n=2A054038
- a(1) = 1; set of digits of a(n)^2 is a subset of the set of digits of a(n+1)^2.at n=35A066825
- Numbers whose square root in base 10 starts with 10 distinct digits.at n=18A113507
- Numbers k such that k^2 is a palindrome when written in base 17.at n=43A118651
- Number of linear arrangements of n blue, n red and n green items such that first and last elements are blue but there are no adjacent items of the same color.at n=6A141146
- Numbers n such that n^2 contains every decimal digit exactly once.at n=2A156977
- G.f. satisfies: A(x) = Sum_{n>=0} x^n * Sum_{k=0..n} C(n,k)^2 * (x*A(x))^(2*k).at n=12A246861
- G.f.: Product_{m>0} (1 + x^m + 2!*x^(2*m) + 3!*x^(3*m)).at n=31A289485
- Numbers whose square contains all of the digits 1 through 9.at n=32A294661