A077665 Final term of n-th row of A077664.

2, 5, 7, 11, 11, 23, 15, 23, 22, 33, 23, 47, 27, 45, 43, 47, 35, 71, 39, 69, 58, 69, 47, 95, 56, 81, 67, 93, 59, 139, 63, 95, 86, 105, 86, 143, 75, 117, 101, 139, 83, 187, 87, 139, 128, 141, 95, 191, 106, 173, 131, 163, 107, 215, 129, 185, 146, 177, 119, 283, 123, 189

Offset: 1

Author

Amarnath Murthy, Nov 14 2002

Keywords

• nonn

Comments

a(p) = 2p+1, p is a prime. a(2^n) = 3*2^n -1.

a(n) also equals the (n+phi(n))th integer from among those positive integers coprime to n, where phi(n) = A000010(n). a(n) also equals n + (the n-th integer from among those positive integers coprime to n) = n + A069213(n). - Leroy Quet, Apr 12 2007

Links

• Reinhard Zumkeller, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A077664, A077666.

Programs

Haskell

a077665 = last . a077664_row  -- Reinhard Zumkeller, Aug 03 2015

Extensions

More terms from Sascha Kurz, Jan 03 2003