A112052 - OEIS

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A112052

a(n) = 2*A112051(n)+1.

3

3, 7, 23, 49, 121, 169, 289, 361, 529, 841, 961, 1369, 1681, 1849, 2209, 2809, 3481, 3721, 4489, 5041, 5329, 6241, 6889, 7921, 9409, 10201, 10609, 11449, 11881, 12769, 16129, 17161, 18769, 19321, 22201, 22801, 24649, 26569, 27889, 29929

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OFFSET

1,1

COMMENTS

From n>=4 onward seems to be squares of primes (A001248).

LINKS

Table of n, a(n) for n=1..40.

FORMULA

A005408(A112051(n))

CROSSREFS

Column 1 of A112070 (row 1 of A112071).

Sequence in context: A058000 A246497 A002715 * A205491 A203253 A179491

Adjacent sequences: A112049 A112050 A112051 * A112053 A112054 A112055

KEYWORD

nonn

AUTHOR

Antti Karttunen, Aug 27 2005

STATUS

approved