53955

Appears in sequences

• Odd square pyramidal numbers.at n=27A015221
• Consider the Kaprekar map n->K(n) defined in A151949. Sequence gives numbers belonging to cycles of length greater than 1.at n=0A099010
• 1/24 of product of three numbers: n-th prime, previous and following number.at n=27A127922
• Consider the Kaprekar map x->K(x) described in A151949. Sequence gives the smallest number that belongs to a cycle of length n under repeated iteration of this map, or -1 if there is no cycle of length n.at n=1A151959
• Smallest member of cycle corresponding to n-th term of A151964.at n=5A151965
• Consider the Kaprekar map n->K(n) defined in A151949. Sequence gives numbers belonging to cycles, including fixed points.at n=3A164716
• Consider the Kaprekar map n->K(n) defined in A151949. Sequence gives least elements of each cycle, including fixed points.at n=3A164718
• Consider the Kaprekar map n->K(n) defined in A151949. Sequence gives least elements of each cycle of length > 1.at n=0A164720
• Numbers belonging to cycles of length 2 under the Kaprekar map A151949.at n=0A164723
• Least element of each cycle of length 2 under the Kaprekar map A151949.at n=0A164724
• Number of blocks in a Steiner Quadruple System of order A047235(n+1).at n=35A228124
• a(n) = n*(2*n + 1)*(4*n + 1)/3.at n=27A258582
• Numbers n such that n and n+1 both have 24 divisors.at n=33A274362
• Number of partitions of n with up to three distinct kinds of 1.at n=42A320690
• Numbers k such that k and k+1 both have the prime signature (2,1,1,1) (A189982).at n=15A336658
• a(n) = Sum_{k=1..n} binomial(k+1,2) * n^k.at n=5A368536