34125
domain: N
Appears in sequences
- Repeatedly convert from decimal to octal.at n=22A008558
- Array read by rows in which the n-th row contains the multiples of n in increasing order using all the digits of first n numbers.at n=30A078189
- Numbers with 5 distinct digits {1,2,3,4,5} such that all adjacent digits (as well as first and last digits) are coprime.at n=30A104972
- Triangle, read by rows, equal to the matrix square of A113370. Also given by the product: P^2 = Q*(R^-2)*Q^3, using triangular matrices P=A113370, Q=A113381 and R=A113389.at n=32A113374
- Triangle, read by rows, given by the product R^3*P^-1 using triangular matrices P=A113370, R=A113389.at n=24A114152
- Hilbert-Warren Add Sequence.at n=7A124264
- Odd infinitary abundant numbers.at n=24A127666
- Numbers k such that phi(k)=p^2, where p is product of digits of k.at n=9A153427
- 15-gonal (or pentadecagonal) pyramidal numbers: a(n) = n*(n+1)*(13*n-10)/6.at n=25A177890
- Wiener index of a benzenoid consisting of a double-step zig-zag chain of n hexagons (n >= 2, s = 2123; see the Gutman et al. reference).at n=16A193395
- Numbers n with the property that if the base-8 representation of n is read backwards, the result is 5*n.at n=2A217742
- Numbers k with the property that if the base-8 representation of k is read backwards, the result is an integral multiple of k.at n=12A223090
- Integer areas of the Lucas Central triangles of integer-sided triangles.at n=3A231739
- Numbers for which the number of prime divisors counted with multiplicity and the sum of the distinct prime divisors are both perfect.at n=20A233563
- Number of partitions p of n such that 2*min(p) + (number of parts of p) is not a part of p.at n=39A238542
- Numbers k such that 2*10^k - 87 is prime.at n=25A273907
- List of André permutations of the first kind.at n=22A278982
- List of André permutations of the second kind.at n=16A278983
- a(n) = n*(n + 1)*(4*n + 5)/2.at n=25A281381
- Odd bi-unitary abundant numbers: odd numbers k such that bsigma(k) > 2*k, where bsigma is the sum of the bi-unitary divisors function (A188999).at n=27A293186