75540

Appears in sequences

• Period (multiplicative order base 10) of the terms in A116074 and A116075.at n=5A116076
• Amicable triples: numbers such that sigma(x) = sigma(y) = sigma(z) = x+y+z, x<y<z. We order these triples according to the common value of sigma. Sequence gives z numbers.at n=12A125492
• Number of nX2 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of elements above it, modulo 4.at n=6A239643
• T(n,k)=Number of nXk 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of the elements above it, modulo 4.at n=34A239649
• Number of 7Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of the elements above it, modulo 4.at n=1A239655
• Number of pairs (a,b) such that a*b = n! and d(a) = d(b) with d = A000005 and a <= b.at n=41A277621