A158787 a(n) = position of n in A076991.

1, 2, 14, 10, 27, 3, 68, 4, 21, 16, 5, 44, 23, 22, 48, 38, 6, 17, 42, 170, 7, 24, 63, 193, 13, 8, 40, 87, 25, 26, 19, 75, 53, 9, 41, 15, 61, 39, 47, 62, 20, 45, 11, 60, 33, 28, 118, 114, 29, 66, 167, 120, 12, 86, 137, 92, 175, 64, 78, 77, 84, 58, 59, 148, 90, 267, 37, 50, 82

Offset

1,2

Comments

A076991 is conjectured to be a permutation of the positive integers.

Links

Table of n, a(n) for n=1..69.

Crossrefs

Cf. A076991 a(1) = 1, a(2) = 2, a(n) = smallest positive integer not occurring earlier such that the sum of three successive terms is a square.

Sequence in context: A168207 A082609 A271382 * A174706 A307269 A072163

Adjacent sequences: A158784 A158785 A158786 * A158788 A158789 A158790

Keyword

nonn

Author

Zak Seidov, Mar 26 2009

Status

approved