A089525 A089450 indexed by A000040.

77, 87, 455, 3386, 7811, 11926, 12233, 12705, 13448, 15382, 16338, 17462, 17844, 18387, 18580, 20577, 22492, 25001, 26060, 32604, 34578, 42718, 52713, 55807, 60272, 65730, 67963, 77232, 85964, 92239, 98963, 99587, 100386, 102163, 103689

Offset

1,1

Links

Table of n, a(n) for n=1..35.

Formula

a(n) = k such that A089450(n) = A000040(k).

a(n) = A000720(A089450(n)). - Michel Marcus, Aug 04 2021

Example

prime(44)=193, 2*193 + 3 = 389 = prime(77);
prime(45)=197, 2*197 + 3 = 397 = prime(78);
prime(46)=199, 2*199 + 3 = 401 = prime(79).

Crossrefs

Subsequence of A089529.

Cf. A088066, A088119, A089450.

Sequence in context: A344800 A294741 A052202 * A274172 A061671 A269809

Adjacent sequences: A089522 A089523 A089524 * A089526 A089527 A089528

Keyword

nonn

Author

Ray Chandler, Nov 07 2003

Extensions

Offset changed to 1 by Jinyuan Wang, Aug 04 2021

Status

approved