29869
domain: N
Appears in sequences
- Starting index of a string of 4 or more consecutive equal digits in decimal expansion of Pi.at n=27A049516
- Starting index of a string of exactly 4 consecutive equal digits in decimal expansion of Pi.at n=16A049520
- Let m = 3, 5, 7, ..., k = 0, 1, 2, 3, ..., z = (m+1)/2, 0 < j <= m. Let n_j be a prime number. Sequence gives T(m,k) = Table[m,k] = number of solutions to Sum_{d=1,2, ..., (z+k)}(n_j)_d = Sum_{d=1,2, ..., (z-k-1)}(n_j)_d = primorial number (A002110).at n=66A057611
- Rounded value of n*L_n(-1) where L is the Laguerre polynomial.at n=23A070070
- Starting positions of strings of three 6's in the decimal expansion of Pi.at n=25A083625
- Long leg of primitive Pythagorean triangles having legs that add up to a square, sorted on hypotenuse.at n=27A089548
- Triangle read by rows: T(n,k) is the number of Schroeder paths of length 2n and having k horizontal segments (a horizontal segment is a maximal string of horizontal steps).at n=45A104549