Sequences

Numbers k such that 2^k mod k is odd.

Inverse of 1903rd cyclotomic polynomial.

Numbers k such that sigma(k) + 4 = sigma(k+4).

Numbers k such that sigma(k) + 6 = sigma(k+6).

Numbers k such that sigma(k) + 8 = sigma(k+8).

Numbers k such that sigma(k) + 10 = sigma(k+10).

Numbers k such that sigma(k) + 12 = sigma(k+12).

Inverse of 1909th cyclotomic polynomial.

Positive integers k such that 2^k == 2 (mod k).

Inverse of 1911th cyclotomic polynomial.

Positive integers n such that 2^n == 4 (mod n).

Numbers k such that 2^k == 8 (mod k).

Inverse of 1914th cyclotomic polynomial.

Positive integers n such that 2^n == 16 (mod n).

Positive integers n such that 2^n == 2^5 (mod n).

Positive integers n such that 2^n == 2^6 (mod n).

Positive integers n such that 2^n == 2^7 (mod n).

Inverse of 1919th cyclotomic polynomial.

Positive integers n such that 2^n == 2^8 (mod n).

Inverse of 1921st cyclotomic polynomial.

Positive integers n such that 2^n (mod n) == 2^9 (mod n).

Positive integers n such that 2^n == 2^10 (mod n).

Inverse of 1924th cyclotomic polynomial.

Inverse of 1925th cyclotomic polynomial.

Positive integers n such that 2^n == 2^11 (mod n).

Inverse of 1927th cyclotomic polynomial.

Positive integers n such that 2^n == 2^12 (mod n).

Smallest k>2^n such that 2^k == 2^n (mod k).

A015938(n)-2^n.

Positive integers n such that 2^n == -3 (mod n).

Inverse of 1932nd cyclotomic polynomial.

Positive integers n such that n | (2^n + n/2 - 1).

a(n) = (2^(2*n)+n) mod (2*n).

Inverse of 1935th cyclotomic polynomial.

Positive integers n such that n | (2^n + n/2 + 1).

Inverse of 1937th cyclotomic polynomial.

Inverse of 1938th cyclotomic polynomial.

a(n) = smallest k >= n such that k | (2^k + n).

Numbers k such that k | 3^k + 1.

Numbers k such that k | 4^k + 1.

Numbers k such that k | 5^k + 1.

Inverse of 1943rd cyclotomic polynomial.

Numbers k such that k | 6^k + 1.

Numbers k such that k | 7^k + 1.

Numbers k such that k | 8^k + 1.

Inverse of 1947th cyclotomic polynomial.

Numbers k such that k | 9^k + 1.

Numbers k such that k | 10^k + 1.

Inverse of 1950th cyclotomic polynomial.

Numbers k such that k | 11^k + 1.