42925

Appears in sequences

• Odd square pyramidal numbers.at n=25A015221
• 1/24 of product of three numbers: n-th prime, previous and following number.at n=24A127922
• 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, 0, 1), (-1, 1, 1), (1, -1, 0), (1, 1, -1), (1, 1, 1)}.at n=8A149806
• Area ar/6 (divided by 6) of primitive Pythagorean triangles such that perimeters are Averages of twin prime pairs, q=p+1, a=q^2-p^2, c=q^2+p^2, b=2*p*q, ar=a*b/2; s=a+b+c, s-+1 are primes.at n=7A155177
• List of fixed points of the base-6 Kaprekar map A165051.at n=5A165055
• Consider the base-6 Kaprekar map n->K(n) defined in A165051. Sequence gives numbers belonging to cycles, including fixed points.at n=16A165056
• Consider the base-6 Kaprekar map n->K(n) defined in A165051. Sequence gives least elements of each cycle, including fixed points.at n=8A165060
• Smallest member of cycle corresponding to n-th term of A165068.at n=6A165069
• Partial sums of A000602.at n=17A173289
• Triangle read by rows, T(n, 1) = 1 and T(n,k) = q^k*T(n-1, k) + T(n-1, k-1) for 2 <= k <= n, n >= 1, with q=2.at n=42A176242
• a(n) = binomial(prime(n),s)/prime(n) where s is the sum of the decimal digits of prime(n).at n=22A176267
• Numbers k such that sigma(2*k-1) is a prime p.at n=16A247820
• a(n) = n*(2*n + 1)*(4*n + 1)/3.at n=25A258582
• Numbers that are both centered square and square pyramidal.at n=2A307492