51975
domain: N
Appears in sequences
- Triangle of coefficients of Bessel polynomials (exponents in decreasing order).at n=40A001497
- Triangle a(n,k) (n >= 0, 0 <= k <= n) of coefficients of Bessel polynomials y_n(x) (exponents in increasing order).at n=40A001498
- a(n) = (8*n+1)*(8*n+7).at n=28A001533
- Coefficients of Bessel polynomials y_n (x).at n=4A001880
- a(n) = 225*(n-1)*(n-2)/2.at n=20A027470
- A triangle of numbers related to triangle A030526.at n=24A049353
- Numbers k such that 61*2^k-1 is prime.at n=34A050556
- Smallest number that is n times the product of its digits or 0 if impossible.at n=32A056770
- Triangle of coefficients of Bessel polynomials {y_n(x)}'.at n=19A065931
- Triangle of coefficients of Bessel polynomials {y_n(x)}''.at n=14A065943
- Least m such that n = m mod tau(m) if such m exists, otherwise 0.at n=38A066708
- Denominator of b(n) = Sum_{k=1..n} (-1)^(k+1)/k*Sum_{i=0..k-1} (-1)^i/(2*i+1).at n=5A073595
- Numbers n such that A001414(n) = sum of composites from the smallest prime factor of n to the largest prime factor of n.at n=26A074053
- Denominators of coefficients of asymptotic expansion of probability p(n) (see A002816) in powers of 1/n.at n=11A078631
- a(n) = smallest number which can be expressed as sum of d consecutive positive integers in exactly n ways (where d>0 is a divisor of the number).at n=27A082637
- Triangle of coefficients of a companion polynomial to the Gandhi polynomial.at n=19A083061
- Another version of triangular array in A083061: triangle T(n,k), 0<=k<=n, read by rows; given by [0, 1, 3, 6, 10, 15, 21, 28, ...] DELTA [1, 2, 3, 4, 5, 6, 7, 8, ...] where DELTA is the operator defined in A084938.at n=26A094665
- Coefficients of polynomial in x multiplying sinh(x) in the modified spherical Bessel function of the first kind i_n(x).at n=36A094674
- Irregular triangle T(n,k) of nonzero coefficients of the modified Hermite polynomials (n >= 0 and 0 <= k <= floor(n/2)).at n=44A096713
- Triangle of Bessel numbers read by rows: T(n,k) is the number of k-matchings of the complete graph K(n).at n=46A100861