42125

Appears in sequences

• Group successively larger prime numbers so that the sum of the n-th group is a multiple of n. Sequence gives the sum for each group.at n=24A074128
• Expansion of e.g.f. 1/(1 - sin(4*x))^(1/4).at n=6A144015
• Number of composite numbers between exponents of successive Mersenne primes.at n=35A157894
• Array read by ascending antidiagonals: A(n, k) = k! * [x^k] (1 - sin(n*x))^(-1/n) for n > 0, A(0, k) = 1.at n=61A385896
• a(n) = 16*n^5 + 70*n^4 + 105*n^3 + 65*n^2 + 15*n + 1.at n=4A385898