395010
domain: N
Appears in sequences
- a(n) = (2*n-1)^2 * a(n-1) - 3*C(2*n-1,3) * a(n-2) for n>1; a(0) = a(1) = 1.at n=5A002370
- Binomial coefficients C(n,53).at n=4A017717
- Binomial coefficients C(57,n).at n=4A017773
- Binomial coefficients binomial(2*n-3,4).at n=26A053126
- a(n) = n*(n+1)*(n+2)*(n+3)*(n+4)/8.at n=18A151974
- Number of binary strings of length n with no substrings equal to 0001 0011 or 0101.at n=26A164454
- Number of terms in the expansion of the determinant of a skew-symmetric matrix of order n.at n=9A167028
- Numbers with prime factorization p*q*r*s*t*u^3 (where p, q, r, s, t, u are distinct primes).at n=21A190378
- Triangle read by rows: the x = 1+q Narayana triangle at m=2.at n=30A243660
- G.f.: Sum_{n>=0} (n+1)*(n+2)*(n+3)*(n+4)/4! * x^n * (1 + x^n)^n.at n=53A326005
- Numbers with a record number of deficient divisors.at n=38A335542
- Triangular array read by rows: A063007 * A007318.at n=32A376467
- The Geode Bi-Tri infinite rectangular array, read by upward antidiagonals.at n=33A383453
- Row 2 of the array in A383453.at n=5A383455