a(n) = [ 1/(2*t(n+1) - t(n) - t(n+2)) ], where t(n) = tan(Pi/2 - 1/n) satisfies n-1 < t(n) < n for all n >= 1.

A024817

a(n) = [ 1/(2*t(n+1) - t(n) - t(n+2)) ], where t(n) = tan(Pi/2 - 1/n) satisfies n-1 < t(n) < n for all n >= 1.

Terms

    a(0) =7a(1) =34a(2) =87a(3) =176a(4) =311a(5) =499a(6) =751a(7) =1074a(8) =1478a(9) =1973a(10) =2566a(11) =3268a(12) =4086a(13) =5030a(14) =6110a(15) =7333a(16) =8710a(17) =10248a(18) =11957a(19) =13847a(20) =15925a(21) =18202a(22) =20685a(23) =23384a(24) =26309a(25) =29467a(26) =32869a(27) =36522a(28) =40436a(29) =44621

External references