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A013938 Sigma [ n/k^4 ],k=1..n. 0
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

Sequence in context: A140823 A178210 A115063 * A023809 A046100 A023757

Adjacent sequences:  A013935 A013936 A013937 * A013939 A013940 A013941

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Henri Lifchitz (100637.64(AT)CompuServe.COM)

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Last modified February 17 03:37 EST 2012. Contains 205978 sequences.