Sequences

Powers of 3 written in base 6.

Powers of 3 written in base 7.

Powers of 3 written in base 8.

Powers of 3 written in base 9.

a(n) = n! + n^2.

Powers of 3 written in base 11. (Next term contains a non-decimal character.)

Powers of 3 written in base 12. (Next term contains a non-decimal character.)

Powers of 3 written in base 13. (Next term contains a non-decimal digit.)

Powers of 3 written in base 26. (Next term contains a non-decimal digit.)

Powers of 3 written in base 27.

Theta series of extremal even unimodular lattice in dimension 32.

Theta series of extremal even unimodular lattice in dimension 40.

Theta series of extremal even unimodular lattice in dimension 48.

Theta series of extremal even unimodular lattice in dimension 56.

Theta series of extremal even unimodular lattice in dimension 64.

Theta series of extremal even unimodular lattice in dimension 72.

Primes written in base 2.

Numerator of 2^n*(3*n-3)!/( ((n-1)!)^3 * (2*n)! ).

Primes written in base 4.

Primes written in base 5.

Primes written in base 6.

Primes written in base 7.

Primes written in base 8.

Primes written in base 9.

Primes written in base 11. (Next term contains a nondecimal character.)

Fibonacci numbers written in base 2.

Fibonacci numbers written in base 3.

Fibonacci numbers written in base 4.

Fibonacci numbers written in base 5.

Fibonacci numbers written in base 6.

Fibonacci numbers written in base 7.

Fibonacci numbers written in base 8.

Fibonacci numbers written in base 9.

Fibonacci numbers written in base 12. (Next term contains a non-decimal character.)

Fibonacci numbers written in base 13. (Next term contains a non-decimal character.)

a(n) = floor(Fibonacci(n)/2).

a(n) = floor(Fibonacci(n)/3).

a(n) = floor(Fibonacci(n)/4).

a(n) = floor(Fibonacci(n)/5).

a(n) = floor(Fibonacci(n)/6).

Expansion of e.g.f. 1/(3 - exp(x) - exp(2*x)).

Expansion of e.g.f. 1/(4 - exp(x) - exp(2*x) - exp(3*x)).

Expansion of e.g.f. 1/(5 - exp(x) - exp(2*x) - exp(3*x) - exp(4*x)).

Expansion of e.g.f. 1/(6-exp(x)-exp(2*x)-exp(3*x)-exp(4*x)-exp(5*x)).

Expansion of e.g.f. 1/(7- Sum_{k=1..6} exp(k*x)).

Expansion of e.g.f. 1/(8 - Sum_{k=1..7} exp(k*x)).

Expansion of e.g.f. 1/(9 - Sum_{k=1..8} exp(k*x)).

Expansion of 1/(10 - Sum_{k=1..9} exp(k*x)).

Expansion of 1/(11 - Sum_{k=1..10} exp(k*x)).

Cubefree numbers: numbers that are not divisible by any cube > 1.