30352

Appears in sequences

• a(1) = a(2) = 1, a(3) = 4; thereafter a(n) = a(n-1) + a(n-3).at n=26A001609
• Indices of primes in sequence defined by A(0) = 57, A(n) = 10*A(n-1) - 43 for n > 0.at n=18A101575
• Number of 4-step one or two space at a time rook's tours on an n X n board summed over all starting positions.at n=10A187289
• Number of (w,x,y) with all terms in {0,...,n} and |w-x| + |x-y| + |y-w| < w+x+y.at n=34A213488
• Number of (n+1)X(2+1) 0..2 arrays colored with the maximum plus the lower median minus the upper median minus the minimum of every 2X2 subblock.at n=2A236665
• Number of (n+1)X(3+1) 0..2 arrays colored with the maximum plus the lower median minus the upper median minus the minimum of every 2X2 subblock.at n=1A236666
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the maximum plus the lower median minus the upper median minus the minimum of every 2X2 subblock.at n=7A236669
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the maximum plus the lower median minus the upper median minus the minimum of every 2X2 subblock.at n=8A236669
• Triangle read by rows: T(n,k) = number of partial idempotent mappings (of an n-chain) with collapse exactly k.at n=43A259759
• Numbers with at least three digits and with the property that the sum of the cubes of the first and last digit equals the number obtained when the first and last digits are deleted.at n=46A275343
• Number of subsets of [n] avoiding 3-term arithmetic progressions and containing n if n>0.at n=24A334893
• Triangle read by rows: T(n,k) is the number of permutations of k elements from [1..n] in a circle with longest consecutive chain size less than 3, when 1 and n are considered to be consecutive, and rotations are considered to be distinct.at n=43A340108
• Triangle read by rows: T(n,k) = number of collections of up to k subsets of [n] covering [n], with [0]={}; n>=0, k=0..2^n.at n=40A381683
• a(n) = round(c^n), where c is the supergolden ratio A092526.at n=27A382641
• a(n) = a(n-1)+2*a(n-2)+a(n-3) with a(0)=1, a(1)=4, a(2) = 6.at n=13A384367