30220

Appears in sequences

• Series for second perpendicular moment of hexagonal lattice.at n=9A006742
• Fibonacci sequence beginning 1, 30.at n=16A022400
• McKay-Thompson series of class 22A for Monster.at n=28A058567
• Convolution of the prime numbers with phi(n).at n=42A086734
• Indices of primes in sequence defined by A(0) = 17, A(n) = 10*A(n-1) - 63 for n > 0.at n=21A102007
• Number of nX5 0..1 arrays with every element unequal to 0, 1, 3 or 6 king-move adjacent elements, with upper left element zero.at n=12A304130
• Number of integer compositions of n whose leaders of weakly increasing runs are not strictly decreasing.at n=15A375140