42272
domain: N
Appears in sequences
- Column of Kempner tableau.at n=8A005438
- Number of down-up permutations of n+5 starting with n+1.at n=6A006214
- Triangle of Euler-Bernoulli or Entringer numbers read by rows: T(n,k) is the number of down-up permutations of n+1 starting with k+1.at n=50A008282
- Read across rows of Euler-Bernoulli or Entringer triangle.at n=33A008283
- Triangle of Euler-Bernoulli or Entringer numbers.at n=49A010094
- a(n) = Fibonacci(n) - 2^(floor(n/2)).at n=24A028892
- Partial sums of A048697.at n=10A048773
- Triangle in which rows are permutations of the rows of A008282.at n=53A064192
- Fibonacci bisection minus powers of 2.at n=12A139209
- Half the difference between the larger and smaller term of the n-th amicable pair.at n=22A162884
- Number of unbalanced partitions of n: the largest part is not equal to the number of parts.at n=40A236634
- Indices where A092243 strictly changes sign.at n=21A269737
- Half the difference between the larger and smaller terms of the n-th amicable pair (x,y) given in A259933.at n=22A275470
- a(n) = a(n-1) + 3*a(n-2) -2*a(n-3) - 2*a(n-4), where a(0) = -1, a(1) = -1, a(2) = 0, a(3) = 1.at n=20A295731