122410

Appears in sequences

• The 28-cycle of the n => sigma(n)-n process, where sigma(n) is the sum of divisors of n (A000203).at n=20A072890
• Conjectured list of sociable numbers.at n=17A122726
• Number of ways to write n as an ordered sum of 10 nonzero triangular numbers.at n=38A340955
• a(n) is the number of ordered 6-tuples (a_1,a_2,a_3,a_4,a_5,a_6) having all terms in {1,...,n} such that there exists a tetrahedron ABCD with those edge-lengths, taken in a particular order (see comments).at n=10A349295
• Number of Grassmannian permutations of size n that avoid a pattern, sigma, where sigma is a pattern of size 6 with exactly one descent.at n=28A362193
• Consecutive states of the linear congruential pseudo-random number generator (9806*s+1) mod (2^17-1) when started at s=1.at n=9A384236