90601

Appears in sequences

• a(n) = (8*n + 5)^2.at n=37A017126
• a(n) = (10*n + 1)^2.at n=30A017282
• a(n) = (11*n + 4)^2.at n=27A017438
• a(n) = (12*n + 1)^2.at n=25A017534
• Sum over all n! permutations of n elements of minimum lengths of cycles.at n=7A028417
• Squares which when written backwards remain square (final 0's excluded).at n=26A033294
• Non-palindromic squares which when written backwards remain square (and still have the same number of digits).at n=14A035090
• Squares with initial digit '9'.at n=9A045793
• Numbers k that divide 8^k + 7^k + 6^k + 5^k + 4^k + 3^k + 2^k.at n=50A057490
• Squares of 1 and primes, written backwards.at n=27A060998
• Squares whose reversal is also a square.at n=39A061457
• Squares k^2 such that reverse(k)^2 = reverse(k^2), excluding squares of palindromes.at n=12A064021
• Squares k^2 such that A068864(k) = k^2.at n=25A068867
• Smallest square obtained by inserting one or more digits between every pair of consecutive digits of n^2.at n=30A080438
• Triangular numbers + 1 squared.at n=24A086601
• Squares of second pentagonal numbers: a(n) = (1/4)*n^2*(3*n+1)^2.at n=14A100256
• Integers that are Rhonda numbers to base 6.at n=17A100969
• Iccanobirt numbers (15 of 15): a(n) = R(R(a(n-1)) + R(a(n-2)) + R(a(n-3))), where R is the digit reversal function A004086.at n=18A102125
• Perfect powers not a multiple of 10 whose digit reversal is also a perfect power (not necessarily with the same exponent, but with exponent > 1).at n=29A110811
• Squares whose digit reversal is a brilliant number (A078972).at n=19A115667