A080485 a(1) = 1; thereafter a(n) = a(n-1) + a(n-1)^(n-1).

1, 1, 2, 10, 10010, 100501001000500110010, 1030439087548102432463831259335600084552960956356206758209687466939207907583986354899341984694140259859223116066501110010

Offset

1,3

Comments

Next term has 841 digits.

By choosing a(1) various sequences can be obtained.

Links

Table of n, a(n) for n=1..7.

Mathematica

a[1] = 1; a[n_] := Sum[a[i]^i, {i, 1, n - 1}]; Table[a[i], {i, 1, 7}] (* Jason Bard, Nov 16 2025 *)

Crossrefs

Cf. A080486.

Sequence in context: A013557 A007158 A155733 * A125149 A079180 A027735

Adjacent sequences: A080482 A080483 A080484 * A080486 A080487 A080488

Keyword

nonn

Author

Amarnath Murthy, Mar 12 2003

Extensions

More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003

Status

approved