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A097044 a(n) = n + a(floor(sqrt(n))) for n > 1; a(1) = 1. 1
1, 3, 4, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 23, 24, 25, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 75, 76, 77, 78, 79, 80, 81, 82 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

FORMULA

a(1)=1; a(n) = n + a(floor(sqrt(n))) for n > 1.

CROSSREFS

Cf. A097043 ( n - a(floor(sqrt(n))) ).

Sequence in context: A056007 A193406 A104426 * A198330 A086986 A057811

Adjacent sequences:  A097041 A097042 A097043 * A097045 A097046 A097047

KEYWORD

nonn

AUTHOR

Rick L. Shepherd (rshepherd2(AT)hotmail.com), Jul 20 2004

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Last modified February 15 06:57 EST 2012. Contains 205694 sequences.