64264
domain: N
Appears in sequences
- s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (F(2), F(3), ...), t = A001950 (upper Wythoff sequence).at n=26A024594
- n written in fractional base 8/6.at n=44A024648
- Numbers k such that 181*2^k+1 is prime.at n=11A032467
- Decimal concatenations of the 38 quintuples (d1,d2,d3,d4,d5) with elements in {2,4,6} for which there exists a prime p >= 7 such that the differences between the 6 consecutive primes starting with p are (d1,d2,d3,d4,d5).at n=26A078870
- Convolution sequence, A000027 / A008683.at n=18A152902
- Number of nondecreasing arrays of n 0..n-1 integers with the sum of their 3rd powers equal to sum(i^3,i=0..n-1).at n=16A216631
- Irregular triangle read by rows: T(n,k) is the number of degree-n permutations without overlaps which furnish k new permutations without overlaps upon the addition of an (n+1)st element, 2 <= k <= 1 + floor(n/2).at n=51A259689
- Starts of runs of 4 consecutive integers that are all terms in A381581.at n=6A381584