30972

Appears in sequences

• Numbers k such that k!!!! + 1 is prime.at n=24A085146
• Numbers k such that k and 5*k, taken together, are pandigital.at n=36A115925
• Number of compositions of n such that the first part is 1 and the second differences of the parts are in {-10,...,10}.at n=17A239560
• Numbers n = p * q, where n, p, and q together contain all 10 digits at least once.at n=26A253172
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 579", based on the 5-celled von Neumann neighborhood.at n=14A283090
• G.f.: Sum_{k>=1} x^(2*k-1)/(1+x^(2*k-1)) * Product_{k>=1} 1/(1-x^k).at n=36A305123
• Number of n element multisets of the 12th roots of unity with zero sum.at n=24A321417