43681

Appears in sequences

• Squares formed by concatenating other squares, not ending in 0.at n=28A009404
• a(n) = (1/3)*(n^2 + 2*n + 3)*(n+1)^2.at n=18A014820
• a(n) = (6*n + 5)^2.at n=34A016970
• a(n) = (7*n + 6)^2.at n=29A017054
• a(n) = (8*n + 1)^2.at n=26A017078
• a(n) = (9*n + 2)^2.at n=23A017186
• a(n) = (10*n + 9)^2.at n=20A017378
• a(n) = (11*n)^2.at n=19A017390
• a(n) = (12*n + 5)^2.at n=17A017582
• Squares such that digits of sqrt(n) are not present in n.at n=39A029784
• Squares which are palindromes in base 13.at n=9A029999
• Numbers that are both lucky and square.at n=35A031162
• Quotients k*(k+1)*(k+2) / (k+(k+1)+(k+2)) that are lucky numbers.at n=26A032792
• Composite numbers whose prime factors contain no digits other than 1 and 9.at n=28A036309
• Square octagonal numbers.at n=2A036428
• Squares with initial digit '4'.at n=21A045787
• Squares resulting from procedure described in A048386.at n=22A048387
• Indices of 9-gonal numbers that are also square.at n=7A048910
• Squares whose product of digits is also a nonzero square.at n=30A053059
• Numbers n such that n and n^(1/2) combined use different digits.at n=17A059931