25021

Appears in sequences

• [ (4th elementary symmetric function of S(n))/(2nd elementary symmetric function of S(n)) ], where S(n) = {first n+3 positive integers congruent to 1 mod 3}.at n=17A024223
• Non-palindromic numbers such that the two largest proper divisors are palindromes having at least two digits and no other divisor is a palindrome with at least two digits.at n=20A074889
• Number of partitions of 2*n into distinct parts with exactly two odd parts.at n=38A096914
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 0), (0, 1, 0), (1, -1, -1), (1, 0, 0)}.at n=9A149911
• Numbers such that the sum of the reverse of their aliquot parts is equal to the reverse of the sum of their aliquot parts.at n=25A278948
• a(n) = (n^3 + 9*n + 14*n + 9)/3.at n=42A322595
• Number of block-separated overpartitions of n.at n=27A390048