146688
domain: N
Appears in sequences
- Number of (n+1) X (6+1) arrays of permutations of 0..n*7+6 with each element having directed index change 0,1 0,-2 1,0 or -1,0.at n=3A264298
- T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having directed index change 0,1 0,-2 1,0 or -1,0.at n=39A264299
- Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,1 0,-2 1,0 or -1,0.at n=5A264303
- Numbers of the form p^2 - 1 where p is a prime of the form 3*k-1 (A003627).at n=38A301812
- a(n) = 144*n^2 - 24*n (n>=1).at n=31A305072
- Numbers k such that k and k+1 both have the same number of squarefree divisors and powerful divisors.at n=32A360904
- Primitive terms in A066192: number k such that k is a term of A066192 and k/2 is not.at n=29A383428
- Let p = A002145(n) be the n-th prime == 3 (mod 4); a(n) is the multiplicative order of 2+-i modulo p in Gaussian integers.at n=39A385165