19026

Appears in sequences

• Triangle of numbers of permutations eliminating just k cards out of n in game of Mousetrap.at n=49A028305
• a(n)-th and (a(n)+1)-st primes are the first pair of primes that differ by exactly 2n; a(n) = -1 if no such pair of primes exists.at n=37A038664
• Number of states in minimal automaton that recognizes biquanimous numbers in base n.at n=14A065023
• Expansion of (1+x)^(1/(1-x)).at n=7A073478
• Number of partitions of n such that all parts, with the possible exception of the smallest, appear only once.at n=49A115029
• Sums of two distinct prime cubes.at n=35A120398
• Triangle T, read by rows, where antidiagonal k of T = antidiagonal k-1 of T^k (after appending '1' for even k) for k>0, with T(n,n)=1 for n>=0.at n=30A132620
• Sum of third powers of two consecutive primes.at n=7A133534
• Sums of 2 cubes of distinct odd primes.at n=27A137632
• Twice 13-gonal numbers: a(n) = n*(11*n - 9).at n=42A152997
• Triangle of coefficients of polynomials u(n,x) jointly generated with A210750; see the Formula section.at n=49A210749
• Least number x such that there are n numbers of the form 6k-1 or 6k+1 between prime(x) and prime(x+1).at n=24A213903
• Sum of numbers in the n-th antidiagonal of the reciprocity array of 1.at n=42A259577
• Sum of the asymmetry degrees of all compositions of n with parts in {1,4}.at n=29A276063
• Number of n X 6 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=7A281203
• a(n)=position of the first occurrence of a local maximum equal to 2n in A001223, n>1.at n=36A286729
• Even numbers that are the sum of two odd prime cubes.at n=34A286836
• Expansion of (1 - 2*x + x^2 - x^4 + x^3 + x^5)/((1 - x)^2*(1 - 2*x + x^3 - x^4)).at n=15A290987
• Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 3 1's.at n=3A295410
• Number of nX4 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 3 1s.at n=3A295412