A154472 a(n) = A126309(A154471(n)).

42, 218, 359, 875, 1763, 2359496, 926357642, 1431707647759, 239418125921492, 9138627621456887, 5265474933763866437, 36640566669911088560059, 1544449741807406472977531, 12634727265105076809694418

Offset

0,1

Comments

This sequence essentially gives the iterated S-expressions of the sequence A154471, with ()'s removed. See A154473.

Links

A. Karttunen, Table of n, a(n) for n = 0..100

Crossrefs

a(n) = A080300(A154473(n)).

Sequence in context: A193400 A193394 A193390 * A221523 A263304 A116004

Adjacent sequences: A154469 A154470 A154471 * A154473 A154474 A154475

Keyword

nonn

Author

Antti Karttunen, Jan 11 2009

Status

approved