71824
domain: N
Appears in sequences
- a(n) = (7*n+2)^2.at n=38A017006
- a(n) = (8*n + 4)^2.at n=33A017114
- a(n) = (9*n + 7)^2.at n=29A017246
- a(n) = (10*n + 8)^2.at n=26A017366
- a(n) = (11*n + 4)^2.at n=24A017438
- a(n) = (12*n + 4)^2.at n=22A017570
- Numbers with 15 divisors.at n=34A030633
- Squares with initial digit '7'.at n=11A045791
- Squares k^2 such that A068864(k) = k^2.at n=22A068867
- Squares which repeat with at least two full periods when written in base 5.at n=1A071131
- Squares x such that x + reverse of x is a prime.at n=23A072367
- Let m = Wonderful Demlo number A002477(n); a(n) = square of the sum of digits of m.at n=31A080150
- Smallest square obtained by inserting one or more digits between every pair of consecutive digits of n^2.at n=27A080438
- Perfect squares in A133459; or perfect squares that are the sums of two nonzero pentagonal pyramidal numbers.at n=19A136359
- Discriminant of the 47 imaginary, bicyclic, biquadratic fields with class number 1.at n=32A159456
- Alternatively squares and cubes with prime differences.at n=18A186882
- Numbers with prime factorization p^2*q^4.at n=33A189988
- Smallest integer m > n such that both n*m and (n+1)*(m+1) are squares.at n=16A212651
- Numbers k such that tau(k+1) - tau(k) = 3, where tau(k) = the number of divisors of k (A000005).at n=17A230653
- Squares whose largest digit is 8.at n=39A295018