A080181 Partial sums of A080180.

1, 3, 8, 15, 25, 40, 57, 77, 104, 133, 169, 218, 269, 589, 928, 1269, 1613, 3570, 5529, 7491, 9456, 11423, 24813, 38206, 51601, 65007, 78416, 91827, 105241, 118674, 132109, 277653, 423200, 568749, 714301, 859860, 1005421, 1151461, 1297518

Offset

1,2

Comments

a(n) = a(n-1) + spf(a(n-1)) for n>1.

Links

Table of n, a(n) for n=1..39.

Crossrefs

Cf. A080180, A080183.

Sequence in context: A022451 A212772 A238806 * A071399 A387529 A001208

Adjacent sequences: A080178 A080179 A080180 * A080182 A080183 A080184

Keyword

nonn

Author

Reinhard Zumkeller, Feb 05 2003

Extensions

Name simplified by Sean A. Irvine, Sep 06 2025

Status

approved