76245

Appears in sequences

• Augmented amicable pairs (larger member of each pair).at n=3A015630
• Fibonacci sequence beginning 2, 17.at n=19A022118
• a(n) = (n^2-1)*(2*n^2-1).at n=14A033595
• Triangular numbers in which the sum of the external digits equals the sum of the internal digits.at n=21A088289
• Numbers n such that the middle coefficient of the cyclotomic polynomial Phi_n(x) has a value not obtained for any smaller n.at n=33A095877
• Minimum number of moves to solve the second Panex puzzle of order n of exchanging the two side towers.at n=10A109224
• Products of 5 distinct primes a,b,c,d,e, such that a+b+c+d+e are prime numbers.at n=15A178782
• Number of 0..n arrays of length 5 with each element differing from at least one neighbor by 2 or more, starting with 0.at n=16A221516
• Variation on betrothed numbers.at n=7A281265
• Squarefree numbers m such that the equation x*(x+1)*(x+2) = m*y^2 has more than one solution (x,y) with x>0 and y>0.at n=10A335715
• Triangular numbers that are one-eighth of other triangular numbers; T(t) such that 8*T(t)=T(u) for some u where T(k) is the k-th triangular number.at n=4A336624
• Triangular numbers which are products of five distinct primes.at n=22A357590
• Number of unordered pairs of strict integer partitions of n.at n=32A366317