102024

Appears in sequences

• Number of points on surface of 6-dimensional cube.at n=6A008513
• Convolution of (1, p(1), p(2), ...) and (F(2), F(3), F(4), ...).at n=19A023628
• The sum of the non-divisors of n (less than n) is a multiple of the sum of the divisors of n.at n=27A066860
• Numbers k such that sum of the divisors d of k divides 1 + 2 + ... + k = k(k+1)/2.at n=29A076617
• a(n) = Sum_{k=0..floor(n/4)} C(n-k,3*k) * 2^(n-3*k).at n=12A099785
• a(n) = 7^n - 5^n.at n=6A121213
• Lower triangular array, called S1hat(6), related to partition number array A145356.at n=49A145357
• Difference of two positive 6th powers.at n=17A181125
• Triangle read by rows: T(n,k) is the number of 2-compositions of n having k columns with an even sum (0<=k<=floor(n/2)).at n=39A181327
• Monotonic ordering of nonnegative differences 7^i-5^j, for 40>= i>=0, j>=0.at n=23A192196