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combinatorics.openverbs.com/v1/combinations working

https://combinatorics.openverbs.com/v1/combinations

Before you pay

Advice
ok
Protocol
x402 · http · POST
Asks for
0.004 USDC on base
Catalogue says
0.004 USDC
Pays to
0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A
Last check
16 min ago · 408 ms · HTTP 402
Detail
402 with valid terms

Reliability

Uptime 24 h
100.0%
Uptime 7 days
100.0% (12 checks)
Uptime 30 days
100.0% (signed daily)
Paid calls 30 d
1 from 1 payers (x402 Bazaar)
Listed by
x402-bazaar
First seen
2026-11-05 22:12 UTC

Description (from the catalogue, unverified)

Binomial coefficient nCr = n!/(r!(n-r)!), the number of unordered r-subsets of n. Requires r ≤ n and min(r, n-r) ≤ 10000.

Signed history

WhenStatementLog index
2026-11-06 00:10 UTC4a9723b1…e2da88 daily summary24552

Verify any statement offline: how.

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