19023

Appears in sequences

• Numbers k such that k^2 contains exactly 9 different digits.at n=32A054037
• Numbers whose square is a zeroless pandigital number (i.e., use the digits 1 through 9 once).at n=7A071519
• Nearest integer to 1/(Sum_{k>=n} 1/k^4).at n=18A083559
• a(0)=4; a(n)=n^2+a(n-1) for n>0.at n=38A153058
• Numbers n such that n contains exactly 5 digits, all distinct, and n^2 contains exactly 9 distinct digits.at n=12A204691
• Triangle read by rows: distribution of adjacent transpositions in involutions.at n=44A217876
• Numbers k such that 3*10^k - 31 is prime.at n=19A293842
• Numbers whose square contains all of the digits 1 through 9.at n=7A294661
• Dimension of the space of Siegel cusp forms of genus 3 and weight 2n.at n=51A352095
• G.f. A(x) satisfies: 1 - x = Sum_{n>=0} (x^(5*n) + (-1)^n*A(x))^n.at n=27A352821
• Maximum coefficient of (1 - x)^3 * (1 - x^2)^3 * (1 - x^3)^3 * ... * (1 - x^n)^3.at n=15A369711
• Maximum of the absolute value of the coefficients of (1 - x)^3 * (1 - x^2)^3 * (1 - x^3)^3 * ... * (1 - x^n)^3.at n=15A369983
• Numbers k such that any two consecutive decimal digits of k^2 differ by 1 after arranging the digits in decreasing order.at n=40A370362
• Absolute value of the minimum coefficient of (1 - x)^3 * (1 - x^2)^3 * (1 - x^3)^3 * ... * (1 - x^n)^3.at n=15A380517