203401

Appears in sequences

• a(n) = (12*n + 7)^2.at n=37A017606
• Composite numbers whose prime factors contain no digits other than 1 and 4.at n=16A036304
• Smallest square that contains the digits of n in its exact middle.at n=34A062689
• Squares containing 2k digits in which the sum of the first k digits = that of the rest.at n=8A068897
• Least square n-gonal number greater than 1, or 0 if none exists.at n=27A100252
• Numbers k such that sigma(k) + phi(k) is a brilliant number (A078972).at n=27A115916
• Squares for which both the sum of the digits and the product of the digits is a triangular number.at n=26A118490
• Squares whose decimal expansion contains no digit greater than 4.at n=37A158082
• Number of n X 5 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 0 1 1 vertically.at n=9A208115
• Squares whose largest decimal digit is 4.at n=26A277948
• Squares k (not ending in 0) such that the integer that is built up by concatenating the floors of the square roots of the two-digit numbers into which the original number is separated (from right to left) is the square root of the original number.at n=35A294497
• Squares of the form k + reverse(k) for at least one k.at n=14A358880
• Squares whose base-3 expansion has no 2.at n=36A363408