274560

Appears in sequences

• Expansion of tan(sinh(x)-sin(x)) = 2/3!*x^3 + 2/7!*x^7 + 4480/9!*x^9 + 2/11!*x^11 + ...at n=6A013371
• arctan(sin(x)-sinh(x)) = -2/3!*x^3 - 2/7!*x^7 + 4480/9!*x^9 - 2/11!*x^11 + ...at n=5A013372
• a(n) = 3*n*(3*n-1)*(3*n-2).at n=22A054776
• a(n) = lcm(6n+2, 6n+4, 6n+6).at n=21A061506
• a(n) = (2*n+2)*(2*n+3)*(2*n+4) = 24*A000330(n+1).at n=31A069074
• a(n) = (32/2)*(n-1)*(n-2)*(n-3)*(n-4).at n=13A134175
• a(n) = n*(n+2)*(n+4)*(n+6).at n=19A190577
• 4-quantum transitions in systems of N>=4 spin 1/2 particles, in columns by combination indices.at n=28A213346
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-1) + b(n-2) + n, where a(0) = 1, a(1) = 2, b(0) = 3, and (a(n)) and (b(n)) are increasing complementary sequences.at n=21A294552