668168

Appears in sequences

• Triangle read by rows: T(n,m) = Prime[m]^n*(Prime[m] - 1)/2.at n=24A121057
• a(n) = (prime(n)^5 - prime(n)^4)/2.at n=6A138439
• a(n) = ceiling((n+1)^4/2).at n=33A171714
• Products of the 4th power of a prime and a distinct prime of power 3 (p^4*q^3).at n=26A179666
• Number of compositions of odd natural numbers into 4 parts <= n.at n=33A191903
• Number of 2 X 2 matrices with all terms in {0,1,...,n} and even trace.at n=33A210378
• Number of 2 X 2 matrices with all terms in {0,1,...,n} and odd trace.at n=33A210379
• Square array A(n, k) read by antidiagonals downwards: multiplicative order of 2 modulo prime(n)^k, where k runs over the positive integers.at n=50A282902
• Numbers k such that k^3 is the sum of two nonzero 4th powers.at n=20A291849