248004

Appears in sequences

• Squares whose digits are all even.at n=18A030098
• Squares the sum of the squares of whose digits are squares.at n=26A061090
• Even-digit perfect powers.at n=21A075787
• a(1)=1; at n>=2, a(n) = least square > a(n-1) such that sum a(1)+...+a(n) is a prime number.at n=22A139033
• Number of bases to which terms of A194946 are pseudoprime.at n=37A195327
• Number of 5Xn 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 0 1 and 1 1 0 vertically.at n=9A207405
• Number of n X 4 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 1 vertically.at n=12A207689
• Number of 4Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 0 vertically.at n=7A207705
• Squares s such that first m and last m digits of the binary representation are perfect positive squares written in binary, and m = floor(binaryLength(s)/2), where binaryLength(s) = A070939(s) is the binary length of s.at n=5A226836
• Squares not divisible by 10 with digits d_1, d_2, ... d_k such that d_1^2 + ... + d_k^2 is a square.at n=17A254959
• Expansion of 1/(1 + Sum_{i>=1} q^(i^2)/Product_{j=1..i} (1 + q^j)^2).at n=14A294407
• Squares whose arithmetic mean of digits is 3 (i.e., the sum of digits is 3 times the number of digits).at n=27A316483
• Primitive exponential admirable numbers: the powerful terms in A336680.at n=32A391283
• Exponential abundant numbers that are squares of squarefree numbers.at n=25A391428