A377791 Primes in A194627.

2, 3, 41, 59, 593, 4787, 4937, 8699, 9281, 9491, 44201, 45491, 49429, 59219, 90197, 93251, 93893, 115211, 118661, 136523, 152501, 156467, 166949, 184571, 185477, 189851, 225353, 232091, 236981, 239963, 277577, 364571, 375569, 386731, 428873, 577307, 581941, 662339, 717161, 718931, 758501, 763811

Offset

1,1

Links

Robert Israel, Table of n, a(n) for n = 1..10000

Formula

a(n) = A194627(A377882(n)).

a(n) = (n-1)^2 + (A377882(n)-n)^2 + 1.

Example

a(3) = 41 because the third prime in A194627 is A194627(9) = 41.

Maple

v:= 1: p:= 0: q:= 0: np:= 0: R:= NULL:
for i from 1 while np < 100 do
  if isprime(v) then p:= p+1; R:= R, v; np:= np+1 else q:= q+1 fi;
  v:= p^2 + q^2 + 1;
od:
R;

Crossrefs

Cf. A194627, A377882.

Sequence in context: A215389 A215154 A215101 * A094714 A200817 A042475

Adjacent sequences: A377788 A377789 A377790 * A377792 A377793 A377794

Keyword

nonn

Author

Robert Israel, Nov 10 2024

Status

approved