52000

Appears in sequences

• A convolution triangle of numbers obtained from A036083.at n=24A030527
• a(n)^3 is smallest cube containing exactly n 0's.at n=11A048365
• Numbers whose square has more than 2/3 of its digits the same.at n=33A060813
• Numbers k that, when expressed in base 5 and then interpreted in base 8, give a multiple of k.at n=45A062930
• Positive integers n such that n^2 = (x^4 - y^4)*(z^4 - t^4) where the pairs of integers (x,y) and (z,t) are not proportional.at n=34A147854
• a(n) = ((3+sqrt(5))*(5+sqrt(5))^n + (3-sqrt(5))*(5-sqrt(5))^n)/2.at n=5A163065
• Numbers with prime factorization pq^3r^5.at n=26A190011
• Number of n X 5 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 0 1 1 vertically.at n=6A208552
• Number of 7 X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 0 1 1 vertically.at n=4A208559
• Number of (w,x,y,z) with all terms in {1,...,n} and w<=2x and y>3z.at n=26A212514
• Number of (n+5) X 11 0..1 matrices with each 6 X 6 subblock idempotent.at n=14A224575
• Numbers n which appear at least twice in A037278(n), concatenation of their divisors written in base 10.at n=44A248323
• Numbers k whose reversal divides the reversal of k+1.at n=20A250602
• a(n) = the fractional part of 1 / A003592(n) read backwards.at n=39A299025
• Numbers that are not palindromes even after removing trailing zeros and are divisible by their reverses.at n=24A345361
• a(n) = Sum_{k = 0..n} binomial(n, k)^2*binomial(n+k, k)*binomial(3*n+2*k+1, n).at n=3A374606