25116

Appears in sequences

• Number of loopless tree-rooted planar maps with 3 vertices and n faces and no isthmuses.at n=12A006428
• a(n) = floor(n*(n+2)*(2*n-1)/8).at n=45A007518
• Numbers k such that k*(k+5) is a palindrome.at n=12A028558
• a(n) = (5*n+1)*(5*n+6).at n=31A085025
• An Alexander sequence for the Miller Institute knot.at n=13A099445
• Numbers that are the least element of a k-cycle (k > 1) of permutation A113821.at n=21A115641
• Sums of the products of n consecutive triples of numbers.at n=7A135037
• Number of primes between Pi^(prime(n)) and Pi^(prime(n+1)).at n=3A137382
• 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), (0, 1, -1), (1, 0, -1), (1, 1, 0)}.at n=11A148282
• Lower Beatty array of sqrt(3).at n=37A182787
• a(n) = 2*n*(7*n + 5).at n=42A195027
• Triangle read by rows: coefficients of second-order hypergeometric-harmonic polynomials.at n=39A222061
• Numbers that are products of two triangular numbers in more than one way.at n=41A264961
• Number of n X 1 0..2 arrays with every repeated value in every row and column one larger mod 3 than the previous repeated value, and upper left element zero.at n=11A267946
• Total number of inversions in all partitions of n.at n=23A271370
• a(n) = 3*(9*n - 1)*(3*n - 2).at n=18A277985
• Numbers k such that k/(3*k - sigma(k)) is a positive integer.at n=43A364977