102060

Appears in sequences

• Partial sums of A048697.at n=11A048773
• 3-enumeration of n X n alternating-sign matrices.at n=6A059477
• Product of nonzero digits of A066549(n).at n=11A066582
• Product of nonzero digits of A066553(n).at n=7A066584
• Numbers n divisible by exactly four nontrivial permutations (rearrangements) of the digits of n.at n=6A090059
• Triangle read by rows: T(n,k) is the number of ternary trees with n edges and having k vertices of outdegree 1 (n >= 0, k >= 0).at n=40A120981
• Triangle read by rows: coefficients of Fermat-Lucas polynomials.at n=61A137372
• a(n) = product of decimal digits of A000043(n).at n=37A163821
• Totally multiplicative sequence with a(p) = 9*(p+2) for prime p.at n=29A167310
• Numbers with prime factorization pqr^2s^6.at n=20A190474
• Triangle read by rows, arising in study of alternating-sign matrices.at n=21A210697
• Triangle read by rows, arising in study of alternating-sign matrices.at n=27A210697
• Numbers n such that sigma(tau(phi(n))) = tau(phi(sigma(n))) = phi(sigma(tau(n))).at n=8A218006
• Product of the digits of the n-th Fibonacci number.at n=53A246558
• Number of (n+2) X (2+2) 0..2 arrays with every consecutive three elements in every row and column having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=2A253030
• Number of (n+2)X(3+2) 0..2 arrays with every consecutive three elements in every row and column having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=1A253031
• T(n,k) = Number of (n+2) X (k+2) 0..2 arrays with every consecutive three elements in every row and column having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=7A253035
• T(n,k) = Number of (n+2) X (k+2) 0..2 arrays with every consecutive three elements in every row and column having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=8A253035
• a(n) = Product_{d|n} T(d) where T(x) = x*(x+1)/2 = A000217(x) = x-th triangular number.at n=26A275786
• Number of 4 X n 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.at n=9A302152