73470

Appears in sequences

• a(n) = Sum{a(k): k=0,1,2,...,n-4,n-2,n-1}; a(n-3) is not a summand; initial terms are 2,3,3.at n=18A049875
• Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,29.at n=11A064251
• Third partial sums of fifth powers (A000584).at n=6A101099
• a(n) = 10*a(n-1) - 7*a(n-2), with a(0)=0, a(1)=1.at n=6A190989
• a(n) = 21*2^n + 10*4^n + 15*3^n + 3*6^n + 6*5^n + 7^n + 28.at n=5A254464
• Number of n X 7 0..1 arrays with no element equal to more than one of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=15A280439
• a(n) = [x^n] Product_{k=1..n} (x^(k^4) + 1/x^(k^4)).at n=41A368206